diff --git a/tests/cases/compiler/capturedLetConstInLoop5.ts b/tests/cases/compiler/capturedLetConstInLoop5.ts
index 475137c14cc..5eedd5aac85 100644
--- a/tests/cases/compiler/capturedLetConstInLoop5.ts
+++ b/tests/cases/compiler/capturedLetConstInLoop5.ts
@@ -19,7 +19,7 @@ function foo00(x) {
         var v = x;
         (function() { return x + v });
         (() => x + v);
-        if (x == 1) {
+        if (x == "1") {
             return;
         }
     }
@@ -158,7 +158,7 @@ function foo00_c(x) {
         var v = x;
         (function() { return x + v });
         (() => x + v);
-        if (x == 1) {
+        if (x == "1") {
             return;
         }
     }
diff --git a/tests/cases/compiler/capturedLetConstInLoop5_ES6.ts b/tests/cases/compiler/capturedLetConstInLoop5_ES6.ts
index 035e21b9e84..224ffa823bf 100644
--- a/tests/cases/compiler/capturedLetConstInLoop5_ES6.ts
+++ b/tests/cases/compiler/capturedLetConstInLoop5_ES6.ts
@@ -21,7 +21,7 @@ function foo00(x) {
         var v = x;
         (function() { return x + v });
         (() => x + v);
-        if (x == 1) {
+        if (x == "1") {
             return;
         }
     }
@@ -160,7 +160,7 @@ function foo00_c(x) {
         var v = x;
         (function() { return x + v });
         (() => x + v);
-        if (x == 1) {
+        if (x == "1") {
             return;
         }
     }
diff --git a/tests/cases/compiler/capturedLetConstInLoop6.ts b/tests/cases/compiler/capturedLetConstInLoop6.ts
index 321d20e3c20..a854be46195 100644
--- a/tests/cases/compiler/capturedLetConstInLoop6.ts
+++ b/tests/cases/compiler/capturedLetConstInLoop6.ts
@@ -13,10 +13,10 @@ for (let x of []) {
 for (let x in []) {
     (function() { return x});
     (() => x);
-    if (x == 1) {
+    if (x == "1") {
         break;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue;
     }
 }
@@ -132,10 +132,10 @@ for (const x of []) {
 for (const x in []) {
     (function() { return x});
     (() => x);
-    if (x == 1) {
+    if (x == "1") {
         break;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue;
     }
 }
diff --git a/tests/cases/compiler/capturedLetConstInLoop6_ES6.ts b/tests/cases/compiler/capturedLetConstInLoop6_ES6.ts
index f43fe5851d2..ad10f1fcb74 100644
--- a/tests/cases/compiler/capturedLetConstInLoop6_ES6.ts
+++ b/tests/cases/compiler/capturedLetConstInLoop6_ES6.ts
@@ -14,10 +14,10 @@ for (let x of []) {
 for (let x in []) {
     (function() { return x});
     (() => x);
-    if (x == 1) {
+    if (x == "1") {
         break;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue;
     }
 }
@@ -133,10 +133,10 @@ for (const x of []) {
 for (const x in []) {
     (function() { return x});
     (() => x);
-    if (x == 1) {
+    if (x == "1") {
         break;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue;
     }
 }
diff --git a/tests/cases/compiler/capturedLetConstInLoop7.ts b/tests/cases/compiler/capturedLetConstInLoop7.ts
index a1d35c4038b..12805411f96 100644
--- a/tests/cases/compiler/capturedLetConstInLoop7.ts
+++ b/tests/cases/compiler/capturedLetConstInLoop7.ts
@@ -21,16 +21,16 @@ l00:
 for (let x in []) {
     (function() { return x});
     (() => x);
-    if (x == 1) {
+    if (x == "1") {
         break;
     }
-    if (x == 1) {
+    if (x == "1") {
         break l00;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue l00;
     }
 }
@@ -209,16 +209,16 @@ l00_c:
 for (const x in []) {
     (function() { return x});
     (() => x);
-    if (x == 1) {
+    if (x == "1") {
         break;
     }
-    if (x == 1) {
+    if (x == "1") {
         break l00_c;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue l00_c;
     }
 }
diff --git a/tests/cases/compiler/capturedLetConstInLoop7_ES6.ts b/tests/cases/compiler/capturedLetConstInLoop7_ES6.ts
index 14b1d0c85af..2e2784f9a16 100644
--- a/tests/cases/compiler/capturedLetConstInLoop7_ES6.ts
+++ b/tests/cases/compiler/capturedLetConstInLoop7_ES6.ts
@@ -22,16 +22,16 @@ l00:
 for (let x in []) {
     (function() { return x});
     (() => x);
-    if (x == 1) {
+    if (x == "1") {
         break;
     }
-    if (x == 1) {
+    if (x == "1") {
         break l00;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue l00;
     }
 }
@@ -210,16 +210,16 @@ l00_c:
 for (const x in []) {
     (function() { return x});
     (() => x);
-    if (x == 1) {
+    if (x == "1") {
         break;
     }
-    if (x == 1) {
+    if (x == "1") {
         break l00_c;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue;
     }
-    if (x == 2) {
+    if (x == "2") {
         continue l00_c;
     }
 }
diff --git a/tests/cases/fourslash/forIn.ts b/tests/cases/fourslash/forIn.ts
index e24e161d96b..855d35917c1 100644
--- a/tests/cases/fourslash/forIn.ts
+++ b/tests/cases/fourslash/forIn.ts
@@ -5,4 +5,4 @@
 
 goTo.marker();
 
-verify.quickInfoIs('var p: any', "");
+verify.quickInfoIs('var p: string', "");