diff --git a/src/harness/client.ts b/src/harness/client.ts
index 81ca520d9a5..76004edf58f 100644
--- a/src/harness/client.ts
+++ b/src/harness/client.ts
@@ -760,21 +760,20 @@ export class SessionClient implements LanguageService {
         const response = this.processResponse<protocol.InlayHintsResponse>(request);
 
         return response.body!.map(item => {
-            const { text, position } = item;
-            const hint = typeof text === "string" ? text : text.map(({ text, span }) => ({
-                text,
-                span: span && {
-                    start: this.lineOffsetToPosition(span.file, span.start),
-                    length: this.lineOffsetToPosition(span.file, span.end) - this.lineOffsetToPosition(span.file, span.start),
-                },
-                file: span && span.file
-            }));
+            const { position, displayParts } = item;
 
             return ({
                 ...item,
                 position: this.lineOffsetToPosition(file, position),
-                text: hint,
-                kind: item.kind as InlayHintKind
+                kind: item.kind as InlayHintKind,
+                displayParts: displayParts?.map(({ text, span }) => ({
+                    text,
+                    span: span && {
+                        start: this.lineOffsetToPosition(span.file, span.start),
+                        length: this.lineOffsetToPosition(span.file, span.end) - this.lineOffsetToPosition(span.file, span.start),
+                    },
+                    file: span && span.file
+                })),
             });
         });
     }
diff --git a/src/server/protocol.ts b/src/server/protocol.ts
index 227a50fd3fb..50fbe3deb13 100644
--- a/src/server/protocol.ts
+++ b/src/server/protocol.ts
@@ -2675,11 +2675,13 @@ export interface InlayHintsRequest extends Request {
 }
 
 export interface InlayHintItem {
-    text: string | InlayHintItemDisplayPart[];
+    /** This property will be the empty string when displayParts is set. */
+    text: string;
     position: Location;
     kind: InlayHintKind;
     whitespaceBefore?: boolean;
     whitespaceAfter?: boolean;
+    displayParts?: InlayHintItemDisplayPart[];
 }
 
 export interface InlayHintItemDisplayPart {
diff --git a/src/server/session.ts b/src/server/session.ts
index 7ffca993518..ed3872c8f40 100644
--- a/src/server/session.ts
+++ b/src/server/session.ts
@@ -1845,20 +1845,19 @@ export class Session<TMessage = string> implements EventSender {
         const hints = project.getLanguageService().provideInlayHints(file, args, this.getPreferences(file));
 
         return hints.map(hint => {
-            const { text, position } = hint;
-            const hintText = typeof text === "string" ? text : text.map(({ text, span, file }) => ({
-                text,
-                span: span && {
-                    start: scriptInfo.positionToLineOffset(span.start),
-                    end: scriptInfo.positionToLineOffset(span.start + span.length),
-                    file: file!
-                }
-            }));
+            const { position, displayParts } = hint;
 
             return {
                 ...hint,
                 position: scriptInfo.positionToLineOffset(position),
-                text: hintText
+                displayParts: displayParts?.map(({ text, span, file }) => ({
+                    text,
+                    span: span && {
+                        start: scriptInfo.positionToLineOffset(span.start),
+                        end: scriptInfo.positionToLineOffset(span.start + span.length),
+                        file: file!
+                    }
+                })),
             };
         });
     }
diff --git a/src/services/inlayHints.ts b/src/services/inlayHints.ts
index 9eb3d7aa4ea..770bca101e7 100644
--- a/src/services/inlayHints.ts
+++ b/src/services/inlayHints.ts
@@ -159,9 +159,11 @@ export function provideInlayHints(context: InlayHintsContext): InlayHint[] {
     }
 
     function addParameterHints(text: string, parameter: Identifier, position: number, isFirstVariadicArgument: boolean, sourceFile: SourceFile | undefined) {
-        let hintText: string | InlayHintDisplayPart[] = `${isFirstVariadicArgument ? "..." : ""}${text}`;
+        let hintText = `${isFirstVariadicArgument ? "..." : ""}${text}`;
+        let displayParts: InlayHintDisplayPart[] | undefined;
         if (shouldUseInteractiveInlayHints(preferences)) {
-            hintText = [getNodeDisplayPart(hintText, parameter, sourceFile!), { text: ":" }];
+            displayParts = [getNodeDisplayPart(hintText, parameter, sourceFile!), { text: ":" }];
+            hintText = "";
         }
         else {
             hintText += ":";
@@ -172,6 +174,7 @@ export function provideInlayHints(context: InlayHintsContext): InlayHint[] {
             position,
             kind: InlayHintKind.Parameter,
             whitespaceAfter: true,
+            displayParts,
         });
     }
 
diff --git a/src/services/types.ts b/src/services/types.ts
index 571e677b208..dc69092d3fe 100644
--- a/src/services/types.ts
+++ b/src/services/types.ts
@@ -866,11 +866,13 @@ export const enum InlayHintKind {
 }
 
 export interface InlayHint {
-    text: string | InlayHintDisplayPart[];
+    /** This property will be the empty string when displayParts is set. */
+    text: string;
     position: number;
     kind: InlayHintKind;
     whitespaceBefore?: boolean;
     whitespaceAfter?: boolean;
+    displayParts?: InlayHintDisplayPart[];
 }
 
 export interface InlayHintDisplayPart {
diff --git a/tests/baselines/reference/api/tsserverlibrary.d.ts b/tests/baselines/reference/api/tsserverlibrary.d.ts
index 95422c57020..4b9d52e470e 100644
--- a/tests/baselines/reference/api/tsserverlibrary.d.ts
+++ b/tests/baselines/reference/api/tsserverlibrary.d.ts
@@ -2124,11 +2124,13 @@ declare namespace ts {
                 arguments: InlayHintsRequestArgs;
             }
             interface InlayHintItem {
-                text: string | InlayHintItemDisplayPart[];
+                /** This property will be the empty string when displayParts is set. */
+                text: string;
                 position: Location;
                 kind: InlayHintKind;
                 whitespaceBefore?: boolean;
                 whitespaceAfter?: boolean;
+                displayParts?: InlayHintItemDisplayPart[];
             }
             interface InlayHintItemDisplayPart {
                 text: string;
@@ -10390,11 +10392,13 @@ declare namespace ts {
         Enum = "Enum"
     }
     interface InlayHint {
-        text: string | InlayHintDisplayPart[];
+        /** This property will be the empty string when displayParts is set. */
+        text: string;
         position: number;
         kind: InlayHintKind;
         whitespaceBefore?: boolean;
         whitespaceAfter?: boolean;
+        displayParts?: InlayHintDisplayPart[];
     }
     interface InlayHintDisplayPart {
         text: string;
diff --git a/tests/baselines/reference/api/typescript.d.ts b/tests/baselines/reference/api/typescript.d.ts
index 404f94a1807..ead6d07d8fb 100644
--- a/tests/baselines/reference/api/typescript.d.ts
+++ b/tests/baselines/reference/api/typescript.d.ts
@@ -6416,11 +6416,13 @@ declare namespace ts {
         Enum = "Enum"
     }
     interface InlayHint {
-        text: string | InlayHintDisplayPart[];
+        /** This property will be the empty string when displayParts is set. */
+        text: string;
         position: number;
         kind: InlayHintKind;
         whitespaceBefore?: boolean;
         whitespaceAfter?: boolean;
+        displayParts?: InlayHintDisplayPart[];
     }
     interface InlayHintDisplayPart {
         text: string;
diff --git a/tests/baselines/reference/inlayHintsShouldWork1.baseline b/tests/baselines/reference/inlayHintsShouldWork1.baseline
index 9d5448c0eb8..a4ca2e72691 100644
--- a/tests/baselines/reference/inlayHintsShouldWork1.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork1.baseline
@@ -1,7 +1,11 @@
 foo(1, 2);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 43,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ foo(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 43,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, 2);
        ^
 {
-  "text": [
+  "text": "",
+  "position": 46,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -34,8 +39,5 @@ foo(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 46,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork11.baseline b/tests/baselines/reference/inlayHintsShouldWork11.baseline
index 24abb1ec94b..4253e6175a2 100644
--- a/tests/baselines/reference/inlayHintsShouldWork11.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork11.baseline
@@ -1,7 +1,11 @@
 foo(1)(2);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 87,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ foo(1)(2);
     {
       "text": ":"
     }
-  ],
-  "position": 87,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1)(2);
        ^
 {
-  "text": [
+  "text": "",
+  "position": 90,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -34,8 +39,5 @@ foo(1)(2);
     {
       "text": ":"
     }
-  ],
-  "position": 90,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork12.baseline b/tests/baselines/reference/inlayHintsShouldWork12.baseline
index f3dc18339d1..86108117993 100644
--- a/tests/baselines/reference/inlayHintsShouldWork12.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork12.baseline
@@ -1,7 +1,11 @@
     return a(1) + 2
              ^
 {
-  "text": [
+  "text": "",
+  "position": 54,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -13,16 +17,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 54,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo((c: number) => c + 1);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 67,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -34,8 +39,5 @@ foo((c: number) => c + 1);
     {
       "text": ":"
     }
-  ],
-  "position": 67,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork13.baseline b/tests/baselines/reference/inlayHintsShouldWork13.baseline
index be924a05582..425f8294f6a 100644
--- a/tests/baselines/reference/inlayHintsShouldWork13.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork13.baseline
@@ -1,7 +1,11 @@
 foo(a, 2);
        ^
 {
-  "text": [
+  "text": "",
+  "position": 66,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -13,8 +17,5 @@ foo(a, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 66,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork2.baseline b/tests/baselines/reference/inlayHintsShouldWork2.baseline
index a1d6e692ee1..0b4274fc30d 100644
--- a/tests/baselines/reference/inlayHintsShouldWork2.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork2.baseline
@@ -1,7 +1,11 @@
 foo(1, { c: 1 });
     ^
 {
-  "text": [
+  "text": "",
+  "position": 44,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,8 +17,5 @@ foo(1, { c: 1 });
     {
       "text": ":"
     }
-  ],
-  "position": 44,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork3.baseline b/tests/baselines/reference/inlayHintsShouldWork3.baseline
index 217be4ed1d3..ea3e49735de 100644
--- a/tests/baselines/reference/inlayHintsShouldWork3.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork3.baseline
@@ -1,7 +1,11 @@
 foo(1, 1, 1, 1);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 48,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ foo(1, 1, 1, 1);
     {
       "text": ":"
     }
-  ],
-  "position": 48,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, 1, 1, 1);
        ^
 {
-  "text": [
+  "text": "",
+  "position": 51,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "...b",
       "span": {
@@ -34,8 +39,5 @@ foo(1, 1, 1, 1);
     {
       "text": ":"
     }
-  ],
-  "position": 51,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork32.baseline b/tests/baselines/reference/inlayHintsShouldWork32.baseline
index 6200a607e61..ae2a23eb09d 100644
--- a/tests/baselines/reference/inlayHintsShouldWork32.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork32.baseline
@@ -1,7 +1,11 @@
 function c2 () { foo2(1, 2); }
                       ^
 {
-  "text": [
+  "text": "",
+  "position": 293,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -13,16 +17,17 @@ function c2 () { foo2(1, 2); }
     {
       "text": ":"
     }
-  ],
-  "position": 293,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 function c2 () { foo2(1, 2); }
                          ^
 {
-  "text": [
+  "text": "",
+  "position": 296,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "d",
       "span": {
@@ -34,16 +39,17 @@ function c2 () { foo2(1, 2); }
     {
       "text": ":"
     }
-  ],
-  "position": 296,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 function c3 () { foo3(1, 2); }
                       ^
 {
-  "text": [
+  "text": "",
+  "position": 324,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "e",
       "span": {
@@ -55,16 +61,17 @@ function c3 () { foo3(1, 2); }
     {
       "text": ":"
     }
-  ],
-  "position": 324,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 function c3 () { foo3(1, 2); }
                          ^
 {
-  "text": [
+  "text": "",
+  "position": 327,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "f",
       "span": {
@@ -76,16 +83,17 @@ function c3 () { foo3(1, 2); }
     {
       "text": ":"
     }
-  ],
-  "position": 327,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 function c4 () { foo4(1, 2); }
                       ^
 {
-  "text": [
+  "text": "",
+  "position": 355,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "g",
       "span": {
@@ -97,16 +105,17 @@ function c4 () { foo4(1, 2); }
     {
       "text": ":"
     }
-  ],
-  "position": 355,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 function c4 () { foo4(1, 2); }
                          ^
 {
-  "text": [
+  "text": "",
+  "position": 358,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "h",
       "span": {
@@ -118,8 +127,5 @@ function c4 () { foo4(1, 2); }
     {
       "text": ":"
     }
-  ],
-  "position": 358,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork33.baseline b/tests/baselines/reference/inlayHintsShouldWork33.baseline
index 4bb95533ac6..f64b6f03927 100644
--- a/tests/baselines/reference/inlayHintsShouldWork33.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork33.baseline
@@ -1,7 +1,11 @@
 foo2(1, 2);
      ^
 {
-  "text": [
+  "text": "",
+  "position": 257,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -13,16 +17,17 @@ foo2(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 257,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo2(1, 2);
         ^
 {
-  "text": [
+  "text": "",
+  "position": 260,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "d",
       "span": {
@@ -34,16 +39,17 @@ foo2(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 260,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo3(1, 2);
      ^
 {
-  "text": [
+  "text": "",
+  "position": 269,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "e",
       "span": {
@@ -55,16 +61,17 @@ foo3(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 269,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo3(1, 2);
         ^
 {
-  "text": [
+  "text": "",
+  "position": 272,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "f",
       "span": {
@@ -76,16 +83,17 @@ foo3(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 272,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo4(1, 2);
      ^
 {
-  "text": [
+  "text": "",
+  "position": 281,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "g",
       "span": {
@@ -97,16 +105,17 @@ foo4(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 281,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo4(1, 2);
         ^
 {
-  "text": [
+  "text": "",
+  "position": 284,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "h",
       "span": {
@@ -118,8 +127,5 @@ foo4(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 284,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork34.baseline b/tests/baselines/reference/inlayHintsShouldWork34.baseline
index 5f49e0bc01d..e4945d9a5d0 100644
--- a/tests/baselines/reference/inlayHintsShouldWork34.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork34.baseline
@@ -1,7 +1,11 @@
 foo(1);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 29,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -13,16 +17,17 @@ foo(1);
     {
       "text": ":"
     }
-  ],
-  "position": 29,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo('');
     ^
 {
-  "text": [
+  "text": "",
+  "position": 37,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -34,16 +39,17 @@ foo('');
     {
       "text": ":"
     }
-  ],
-  "position": 37,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(true);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 46,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -55,16 +61,17 @@ foo(true);
     {
       "text": ":"
     }
-  ],
-  "position": 46,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo((1));
     ^
 {
-  "text": [
+  "text": "",
+  "position": 67,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -76,16 +83,17 @@ foo((1));
     {
       "text": ":"
     }
-  ],
-  "position": 67,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(foo(1));
         ^
 {
-  "text": [
+  "text": "",
+  "position": 81,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -97,8 +105,5 @@ foo(foo(1));
     {
       "text": ":"
     }
-  ],
-  "position": 81,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork35.baseline b/tests/baselines/reference/inlayHintsShouldWork35.baseline
index 7db0677035b..5bf2348d3b7 100644
--- a/tests/baselines/reference/inlayHintsShouldWork35.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork35.baseline
@@ -1,7 +1,11 @@
 foo(1);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 29,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -13,16 +17,17 @@ foo(1);
     {
       "text": ":"
     }
-  ],
-  "position": 29,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo('');
     ^
 {
-  "text": [
+  "text": "",
+  "position": 37,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -34,16 +39,17 @@ foo('');
     {
       "text": ":"
     }
-  ],
-  "position": 37,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(true);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 46,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -55,16 +61,17 @@ foo(true);
     {
       "text": ":"
     }
-  ],
-  "position": 46,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(() => 1);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 57,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -76,16 +83,17 @@ foo(() => 1);
     {
       "text": ":"
     }
-  ],
-  "position": 57,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(function () { return 1 });
     ^
 {
-  "text": [
+  "text": "",
+  "position": 71,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -97,16 +105,17 @@ foo(function () { return 1 });
     {
       "text": ":"
     }
-  ],
-  "position": 71,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo({});
     ^
 {
-  "text": [
+  "text": "",
+  "position": 102,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -118,16 +127,17 @@ foo({});
     {
       "text": ":"
     }
-  ],
-  "position": 102,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo({ a: 1 });
     ^
 {
-  "text": [
+  "text": "",
+  "position": 111,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -139,16 +149,17 @@ foo({ a: 1 });
     {
       "text": ":"
     }
-  ],
-  "position": 111,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo([]);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 126,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -160,16 +171,17 @@ foo([]);
     {
       "text": ":"
     }
-  ],
-  "position": 126,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo([1]);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 135,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -181,16 +193,17 @@ foo([1]);
     {
       "text": ":"
     }
-  ],
-  "position": 135,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(foo);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 145,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -202,16 +215,17 @@ foo(foo);
     {
       "text": ":"
     }
-  ],
-  "position": 145,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo((1));
     ^
 {
-  "text": [
+  "text": "",
+  "position": 155,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -223,16 +237,17 @@ foo((1));
     {
       "text": ":"
     }
-  ],
-  "position": 155,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(foo(1));
     ^
 {
-  "text": [
+  "text": "",
+  "position": 165,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -244,16 +259,17 @@ foo(foo(1));
     {
       "text": ":"
     }
-  ],
-  "position": 165,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(foo(1));
         ^
 {
-  "text": [
+  "text": "",
+  "position": 169,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "v",
       "span": {
@@ -265,8 +281,5 @@ foo(foo(1));
     {
       "text": ":"
     }
-  ],
-  "position": 169,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork36.baseline b/tests/baselines/reference/inlayHintsShouldWork36.baseline
index 521dce897a4..d9e2b88aac5 100644
--- a/tests/baselines/reference/inlayHintsShouldWork36.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork36.baseline
@@ -1,7 +1,11 @@
 foo(a, 2);
     ^
 {
-  "text": [
+  "text": "",
+  "position": 63,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ foo(a, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 63,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(a, 2);
        ^
 {
-  "text": [
+  "text": "",
+  "position": 66,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -34,8 +39,5 @@ foo(a, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 66,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork4.baseline b/tests/baselines/reference/inlayHintsShouldWork4.baseline
index d513fb4f5c3..c5b93f778b1 100644
--- a/tests/baselines/reference/inlayHintsShouldWork4.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork4.baseline
@@ -1,7 +1,11 @@
 foo(1)
     ^
 {
-  "text": [
+  "text": "",
+  "position": 166,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "w",
       "span": {
@@ -13,16 +17,17 @@ foo(1)
     {
       "text": ":"
     }
-  ],
-  "position": 166,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, 2)
     ^
 {
-  "text": [
+  "text": "",
+  "position": 173,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -34,16 +39,17 @@ foo(1, 2)
     {
       "text": ":"
     }
-  ],
-  "position": 173,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, 2)
        ^
 {
-  "text": [
+  "text": "",
+  "position": 176,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -55,8 +61,5 @@ foo(1, 2)
     {
       "text": ":"
     }
-  ],
-  "position": 176,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork5.baseline b/tests/baselines/reference/inlayHintsShouldWork5.baseline
index 0dccb2a3942..40fd6eab8de 100644
--- a/tests/baselines/reference/inlayHintsShouldWork5.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork5.baseline
@@ -1,7 +1,11 @@
 foo(1, 2, 3)
     ^
 {
-  "text": [
+  "text": "",
+  "position": 87,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -13,16 +17,17 @@ foo(1, 2, 3)
     {
       "text": ":"
     }
-  ],
-  "position": 87,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, 2, 3)
        ^
 {
-  "text": [
+  "text": "",
+  "position": 90,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -34,16 +39,17 @@ foo(1, 2, 3)
     {
       "text": ":"
     }
-  ],
-  "position": 90,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, 2, 3)
           ^
 {
-  "text": [
+  "text": "",
+  "position": 93,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -55,8 +61,5 @@ foo(1, 2, 3)
     {
       "text": ":"
     }
-  ],
-  "position": 93,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork50.baseline b/tests/baselines/reference/inlayHintsShouldWork50.baseline
index b1c4d564ffc..df463016cca 100644
--- a/tests/baselines/reference/inlayHintsShouldWork50.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork50.baseline
@@ -1,7 +1,11 @@
 foo(1, '', false, 1, 2)
     ^
 {
-  "text": [
+  "text": "",
+  "position": 161,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "f",
       "span": {
@@ -13,16 +17,17 @@ foo(1, '', false, 1, 2)
     {
       "text": ":"
     }
-  ],
-  "position": 161,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, '', false, 1, 2)
        ^
 {
-  "text": [
+  "text": "",
+  "position": 164,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -34,16 +39,17 @@ foo(1, '', false, 1, 2)
     {
       "text": ":"
     }
-  ],
-  "position": 164,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, '', false, 1, 2)
            ^
 {
-  "text": [
+  "text": "",
+  "position": 168,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -55,16 +61,17 @@ foo(1, '', false, 1, 2)
     {
       "text": ":"
     }
-  ],
-  "position": 168,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, '', false, 1, 2)
                   ^
 {
-  "text": [
+  "text": "",
+  "position": 175,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "...c",
       "span": {
@@ -76,16 +83,17 @@ foo(1, '', false, 1, 2)
     {
       "text": ":"
     }
-  ],
-  "position": 175,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo1(1, "", "")
      ^
 {
-  "text": [
+  "text": "",
+  "position": 186,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "f1",
       "span": {
@@ -97,16 +105,17 @@ foo1(1, "", "")
     {
       "text": ":"
     }
-  ],
-  "position": 186,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo1(1, "", "")
         ^
 {
-  "text": [
+  "text": "",
+  "position": 189,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "...args",
       "span": {
@@ -118,8 +127,5 @@ foo1(1, "", "")
     {
       "text": ":"
     }
-  ],
-  "position": 189,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork52.baseline b/tests/baselines/reference/inlayHintsShouldWork52.baseline
index 7568d4fe52f..b0572fd914c 100644
--- a/tests/baselines/reference/inlayHintsShouldWork52.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork52.baseline
@@ -10,7 +10,11 @@ function foo (aParameter: number, bParameter: number, cParameter: number) { }
     2,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 134,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "bParameter",
       "span": {
@@ -22,16 +26,17 @@ function foo (aParameter: number, bParameter: number, cParameter: number) { }
     {
       "text": ":"
     }
-  ],
-  "position": 134,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     3
     ^
 {
-  "text": [
+  "text": "",
+  "position": 338,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "cParameter",
       "span": {
@@ -43,16 +48,17 @@ function foo (aParameter: number, bParameter: number, cParameter: number) { }
     {
       "text": ":"
     }
-  ],
-  "position": 338,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     1,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 373,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "aParameter",
       "span": {
@@ -64,16 +70,17 @@ function foo (aParameter: number, bParameter: number, cParameter: number) { }
     {
       "text": ":"
     }
-  ],
-  "position": 373,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     2,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 380,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "bParameter",
       "span": {
@@ -85,16 +92,17 @@ function foo (aParameter: number, bParameter: number, cParameter: number) { }
     {
       "text": ":"
     }
-  ],
-  "position": 380,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     3
     ^
 {
-  "text": [
+  "text": "",
+  "position": 440,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "cParameter",
       "span": {
@@ -106,8 +114,5 @@ function foo (aParameter: number, bParameter: number, cParameter: number) { }
     {
       "text": ":"
     }
-  ],
-  "position": 440,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork53.baseline b/tests/baselines/reference/inlayHintsShouldWork53.baseline
index 75ad55b527b..9c090239a99 100644
--- a/tests/baselines/reference/inlayHintsShouldWork53.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork53.baseline
@@ -1,7 +1,11 @@
 fn(/* nobody knows exactly what this param is */ 42);
                                                  ^
 {
-  "text": [
+  "text": "",
+  "position": 76,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "x",
       "span": {
@@ -13,8 +17,5 @@ fn(/* nobody knows exactly what this param is */ 42);
     {
       "text": ":"
     }
-  ],
-  "position": 76,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork6.baseline b/tests/baselines/reference/inlayHintsShouldWork6.baseline
index e7fa7dcc833..3f8bbed8692 100644
--- a/tests/baselines/reference/inlayHintsShouldWork6.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork6.baseline
@@ -1,7 +1,11 @@
 foo(1, 2, 3)
     ^
 {
-  "text": [
+  "text": "",
+  "position": 81,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -13,8 +17,5 @@ foo(1, 2, 3)
     {
       "text": ":"
     }
-  ],
-  "position": 81,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork62.baseline b/tests/baselines/reference/inlayHintsShouldWork62.baseline
index 7c8f4d05c50..3f8f62af0d3 100644
--- a/tests/baselines/reference/inlayHintsShouldWork62.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork62.baseline
@@ -1,7 +1,11 @@
 trace(`${1}`);
       ^
 {
-  "text": [
+  "text": "",
+  "position": 41,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "message",
       "span": {
@@ -13,16 +17,17 @@ trace(`${1}`);
     {
       "text": ":"
     }
-  ],
-  "position": 41,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 trace(``);
       ^
 {
-  "text": [
+  "text": "",
+  "position": 56,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "message",
       "span": {
@@ -34,8 +39,5 @@ trace(``);
     {
       "text": ":"
     }
-  ],
-  "position": 56,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork63.baseline b/tests/baselines/reference/inlayHintsShouldWork63.baseline
index 6c1665a361d..674c1e4aea5 100644
--- a/tests/baselines/reference/inlayHintsShouldWork63.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork63.baseline
@@ -1,7 +1,11 @@
 foo(1, +1, -1, +"1");
     ^
 {
-  "text": [
+  "text": "",
+  "position": 64,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ foo(1, +1, -1, +"1");
     {
       "text": ":"
     }
-  ],
-  "position": 64,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, +1, -1, +"1");
        ^
 {
-  "text": [
+  "text": "",
+  "position": 67,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -34,16 +39,17 @@ foo(1, +1, -1, +"1");
     {
       "text": ":"
     }
-  ],
-  "position": 67,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, +1, -1, +"1");
            ^
 {
-  "text": [
+  "text": "",
+  "position": 71,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -55,16 +61,17 @@ foo(1, +1, -1, +"1");
     {
       "text": ":"
     }
-  ],
-  "position": 71,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 foo(1, +1, -1, +"1");
                ^
 {
-  "text": [
+  "text": "",
+  "position": 75,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "d",
       "span": {
@@ -76,8 +83,5 @@ foo(1, +1, -1, +"1");
     {
       "text": ":"
     }
-  ],
-  "position": 75,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork64.baseline b/tests/baselines/reference/inlayHintsShouldWork64.baseline
index 3dfbe7a1521..3b0b481bfe4 100644
--- a/tests/baselines/reference/inlayHintsShouldWork64.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork64.baseline
@@ -1,7 +1,11 @@
     "hello",
     ^
 {
-  "text": [
+  "text": "",
+  "position": 183,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 183,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     undefined,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 196,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -34,16 +39,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 196,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     null,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 211,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -55,16 +61,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 211,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     true,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 221,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "d",
       "span": {
@@ -76,16 +83,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 221,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     false,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 231,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "e",
       "span": {
@@ -97,16 +105,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 231,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     Infinity,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 242,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "f",
       "span": {
@@ -118,16 +127,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 242,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     -Infinity,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 256,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "g",
       "span": {
@@ -139,16 +149,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 256,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     NaN,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 271,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "h",
       "span": {
@@ -160,16 +171,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 271,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     /hello/g,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 280,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "i",
       "span": {
@@ -181,16 +193,17 @@
     {
       "text": ":"
     }
-  ],
-  "position": 280,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
     123n,
     ^
 {
-  "text": [
+  "text": "",
+  "position": 294,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "j",
       "span": {
@@ -202,8 +215,5 @@
     {
       "text": ":"
     }
-  ],
-  "position": 294,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork68.baseline b/tests/baselines/reference/inlayHintsShouldWork68.baseline
index 6e5c31fc74f..32b0560b803 100644
--- a/tests/baselines/reference/inlayHintsShouldWork68.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork68.baseline
@@ -1,7 +1,11 @@
 const C1 = class extends foo(1) { }
                              ^
 {
-  "text": [
+  "text": "",
+  "position": 63,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ const C1 = class extends foo(1) { }
     {
       "text": ":"
     }
-  ],
-  "position": 63,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 class C2 extends foo(1) { }
                      ^
 {
-  "text": [
+  "text": "",
+  "position": 91,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -34,8 +39,5 @@ class C2 extends foo(1) { }
     {
       "text": ":"
     }
-  ],
-  "position": 91,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork7.baseline b/tests/baselines/reference/inlayHintsShouldWork7.baseline
index bd821805f44..17d74b5d61c 100644
--- a/tests/baselines/reference/inlayHintsShouldWork7.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork7.baseline
@@ -1,7 +1,11 @@
 call(1);
      ^
 {
-  "text": [
+  "text": "",
+  "position": 105,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ call(1);
     {
       "text": ":"
     }
-  ],
-  "position": 105,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 call(1, 2);
      ^
 {
-  "text": [
+  "text": "",
+  "position": 114,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -34,16 +39,17 @@ call(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 114,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 call(1, 2);
         ^
 {
-  "text": [
+  "text": "",
+  "position": 117,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -55,8 +61,5 @@ call(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 117,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork8.baseline b/tests/baselines/reference/inlayHintsShouldWork8.baseline
index 26db5607064..f7cb28571a2 100644
--- a/tests/baselines/reference/inlayHintsShouldWork8.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork8.baseline
@@ -1,7 +1,11 @@
 new Class(1)
           ^
 {
-  "text": [
+  "text": "",
+  "position": 136,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ new Class(1)
     {
       "text": ":"
     }
-  ],
-  "position": 136,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 new Class(1, 2)
           ^
 {
-  "text": [
+  "text": "",
+  "position": 149,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -34,16 +39,17 @@ new Class(1, 2)
     {
       "text": ":"
     }
-  ],
-  "position": 149,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 new Class(1, 2)
              ^
 {
-  "text": [
+  "text": "",
+  "position": 152,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -55,8 +61,5 @@ new Class(1, 2)
     {
       "text": ":"
     }
-  ],
-  "position": 152,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/inlayHintsShouldWork9.baseline b/tests/baselines/reference/inlayHintsShouldWork9.baseline
index 86a0659afd5..2e42331c3fa 100644
--- a/tests/baselines/reference/inlayHintsShouldWork9.baseline
+++ b/tests/baselines/reference/inlayHintsShouldWork9.baseline
@@ -1,7 +1,11 @@
 call(1);
      ^
 {
-  "text": [
+  "text": "",
+  "position": 131,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "a",
       "span": {
@@ -13,16 +17,17 @@ call(1);
     {
       "text": ":"
     }
-  ],
-  "position": 131,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 call(1, 2);
      ^
 {
-  "text": [
+  "text": "",
+  "position": 140,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "b",
       "span": {
@@ -34,16 +39,17 @@ call(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 140,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 call(1, 2);
         ^
 {
-  "text": [
+  "text": "",
+  "position": 143,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "c",
       "span": {
@@ -55,16 +61,17 @@ call(1, 2);
     {
       "text": ":"
     }
-  ],
-  "position": 143,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
 
 new call(1);
          ^
 {
-  "text": [
+  "text": "",
+  "position": 156,
+  "kind": "Parameter",
+  "whitespaceAfter": true,
+  "displayParts": [
     {
       "text": "d",
       "span": {
@@ -76,8 +83,5 @@ new call(1);
     {
       "text": ":"
     }
-  ],
-  "position": 156,
-  "kind": "Parameter",
-  "whitespaceAfter": true
+  ]
 }
\ No newline at end of file