diff --git a/tests/baselines/reference/APISample_compile.js b/tests/baselines/reference/APISample_compile.js
index f6a86d4c245..9f581cf34ab 100644
--- a/tests/baselines/reference/APISample_compile.js
+++ b/tests/baselines/reference/APISample_compile.js
@@ -1186,6 +1186,7 @@ declare module "typescript" {
         target?: ScriptTarget;
         version?: boolean;
         watch?: boolean;
+        stripInternal?: boolean;
         [option: string]: string | number | boolean;
     }
     const enum ModuleKind {
@@ -1216,6 +1217,7 @@ declare module "typescript" {
         description?: DiagnosticMessage;
         paramType?: DiagnosticMessage;
         error?: DiagnosticMessage;
+        experimental?: boolean;
     }
     const enum CharacterCodes {
         nullCharacter = 0,
diff --git a/tests/baselines/reference/APISample_compile.types b/tests/baselines/reference/APISample_compile.types
index 4ef90c6d114..6a057658f5a 100644
--- a/tests/baselines/reference/APISample_compile.types
+++ b/tests/baselines/reference/APISample_compile.types
@@ -3818,6 +3818,9 @@ declare module "typescript" {
         watch?: boolean;

 >watch : boolean
 
+        stripInternal?: boolean;

+>stripInternal : boolean
+
         [option: string]: string | number | boolean;

 >option : string
     }

@@ -3898,6 +3901,9 @@ declare module "typescript" {
         error?: DiagnosticMessage;

 >error : DiagnosticMessage
 >DiagnosticMessage : DiagnosticMessage
+
+        experimental?: boolean;

+>experimental : boolean
     }

     const enum CharacterCodes {

 >CharacterCodes : CharacterCodes
diff --git a/tests/baselines/reference/APISample_linter.js b/tests/baselines/reference/APISample_linter.js
index aef5c70349b..5fd4716b8e9 100644
--- a/tests/baselines/reference/APISample_linter.js
+++ b/tests/baselines/reference/APISample_linter.js
@@ -1215,6 +1215,7 @@ declare module "typescript" {
         target?: ScriptTarget;
         version?: boolean;
         watch?: boolean;
+        stripInternal?: boolean;
         [option: string]: string | number | boolean;
     }
     const enum ModuleKind {
@@ -1245,6 +1246,7 @@ declare module "typescript" {
         description?: DiagnosticMessage;
         paramType?: DiagnosticMessage;
         error?: DiagnosticMessage;
+        experimental?: boolean;
     }
     const enum CharacterCodes {
         nullCharacter = 0,
diff --git a/tests/baselines/reference/APISample_linter.types b/tests/baselines/reference/APISample_linter.types
index 957ccd3c01e..ffbe61d41a5 100644
--- a/tests/baselines/reference/APISample_linter.types
+++ b/tests/baselines/reference/APISample_linter.types
@@ -3948,6 +3948,9 @@ declare module "typescript" {
         watch?: boolean;

 >watch : boolean
 
+        stripInternal?: boolean;

+>stripInternal : boolean
+
         [option: string]: string | number | boolean;

 >option : string
     }

@@ -4028,6 +4031,9 @@ declare module "typescript" {
         error?: DiagnosticMessage;

 >error : DiagnosticMessage
 >DiagnosticMessage : DiagnosticMessage
+
+        experimental?: boolean;

+>experimental : boolean
     }

     const enum CharacterCodes {

 >CharacterCodes : CharacterCodes
diff --git a/tests/baselines/reference/APISample_transform.js b/tests/baselines/reference/APISample_transform.js
index 33cea1ea0af..6b5828ccb4a 100644
--- a/tests/baselines/reference/APISample_transform.js
+++ b/tests/baselines/reference/APISample_transform.js
@@ -1216,6 +1216,7 @@ declare module "typescript" {
         target?: ScriptTarget;
         version?: boolean;
         watch?: boolean;
+        stripInternal?: boolean;
         [option: string]: string | number | boolean;
     }
     const enum ModuleKind {
@@ -1246,6 +1247,7 @@ declare module "typescript" {
         description?: DiagnosticMessage;
         paramType?: DiagnosticMessage;
         error?: DiagnosticMessage;
+        experimental?: boolean;
     }
     const enum CharacterCodes {
         nullCharacter = 0,
diff --git a/tests/baselines/reference/APISample_transform.types b/tests/baselines/reference/APISample_transform.types
index c091af5effb..293927b9ea9 100644
--- a/tests/baselines/reference/APISample_transform.types
+++ b/tests/baselines/reference/APISample_transform.types
@@ -3896,6 +3896,9 @@ declare module "typescript" {
         watch?: boolean;

 >watch : boolean
 
+        stripInternal?: boolean;

+>stripInternal : boolean
+
         [option: string]: string | number | boolean;

 >option : string
     }

@@ -3976,6 +3979,9 @@ declare module "typescript" {
         error?: DiagnosticMessage;

 >error : DiagnosticMessage
 >DiagnosticMessage : DiagnosticMessage
+
+        experimental?: boolean;

+>experimental : boolean
     }

     const enum CharacterCodes {

 >CharacterCodes : CharacterCodes
diff --git a/tests/baselines/reference/APISample_watcher.js b/tests/baselines/reference/APISample_watcher.js
index 7c70ee1532e..c2cf2c89033 100644
--- a/tests/baselines/reference/APISample_watcher.js
+++ b/tests/baselines/reference/APISample_watcher.js
@@ -1253,6 +1253,7 @@ declare module "typescript" {
         target?: ScriptTarget;
         version?: boolean;
         watch?: boolean;
+        stripInternal?: boolean;
         [option: string]: string | number | boolean;
     }
     const enum ModuleKind {
@@ -1283,6 +1284,7 @@ declare module "typescript" {
         description?: DiagnosticMessage;
         paramType?: DiagnosticMessage;
         error?: DiagnosticMessage;
+        experimental?: boolean;
     }
     const enum CharacterCodes {
         nullCharacter = 0,
diff --git a/tests/baselines/reference/APISample_watcher.types b/tests/baselines/reference/APISample_watcher.types
index c3d03259385..d9135591898 100644
--- a/tests/baselines/reference/APISample_watcher.types
+++ b/tests/baselines/reference/APISample_watcher.types
@@ -4074,6 +4074,9 @@ declare module "typescript" {
         watch?: boolean;

 >watch : boolean
 
+        stripInternal?: boolean;

+>stripInternal : boolean
+
         [option: string]: string | number | boolean;

 >option : string
     }

@@ -4154,6 +4157,9 @@ declare module "typescript" {
         error?: DiagnosticMessage;

 >error : DiagnosticMessage
 >DiagnosticMessage : DiagnosticMessage
+
+        experimental?: boolean;

+>experimental : boolean
     }

     const enum CharacterCodes {

 >CharacterCodes : CharacterCodes