diff --git a/tests/baselines/reference/ES5For-of1.js b/tests/baselines/reference/ES5For-of1.js
new file mode 100644
index 00000000000..8c4bc1038c3
--- /dev/null
+++ b/tests/baselines/reference/ES5For-of1.js
@@ -0,0 +1,7 @@
+//// [ES5For-of1.ts]
+for (var v of []) { }
+
+//// [ES5For-of1.js]
+for (var v, _i = 0, _a = []; _i < _a.length; _i++) {
+    v = _a[_i];
+}
diff --git a/tests/baselines/reference/ES5For-of2.js b/tests/baselines/reference/ES5For-of2.js
new file mode 100644
index 00000000000..e057ccbbf3e
--- /dev/null
+++ b/tests/baselines/reference/ES5For-of2.js
@@ -0,0 +1,10 @@
+//// [ES5For-of2.ts]
+for (var v of []) {
+    var x = v;
+}
+
+//// [ES5For-of2.js]
+for (var v, _i = 0, _a = []; _i < _a.length; _i++) {
+    v = _a[_i];
+    var x = v;
+}
diff --git a/tests/baselines/reference/ES5For-of3.js b/tests/baselines/reference/ES5For-of3.js
new file mode 100644
index 00000000000..3bb7cf63885
--- /dev/null
+++ b/tests/baselines/reference/ES5For-of3.js
@@ -0,0 +1,9 @@
+//// [ES5For-of3.ts]
+for (var v of [])
+    var x = v;
+
+//// [ES5For-of3.js]
+for (var v, _i = 0, _a = []; _i < _a.length; _i++) {
+    v = _a[_i];
+    var x = v;
+}
diff --git a/tests/baselines/reference/ES5For-of4.js b/tests/baselines/reference/ES5For-of4.js
new file mode 100644
index 00000000000..ee36de0a3af
--- /dev/null
+++ b/tests/baselines/reference/ES5For-of4.js
@@ -0,0 +1,11 @@
+//// [ES5For-of4.ts]
+for (var v of [])
+    var x = v;
+var y = v;
+
+//// [ES5For-of4.js]
+for (var v, _i = 0, _a = []; _i < _a.length; _i++) {
+    v = _a[_i];
+    var x = v;
+}
+var y = v;
diff --git a/tests/baselines/reference/ES5For-of5.js b/tests/baselines/reference/ES5For-of5.js
new file mode 100644
index 00000000000..0dfb430ca44
--- /dev/null
+++ b/tests/baselines/reference/ES5For-of5.js
@@ -0,0 +1,10 @@
+//// [ES5For-of5.ts]
+for (var _a of []) {
+    var x = _a;
+}
+
+//// [ES5For-of5.js]
+for (var _a, _i = 0, _a_1 = []; _i < _a_1.length; _i++) {
+    _a = _a_1[_i];
+    var x = _a;
+}
diff --git a/tests/baselines/reference/ES5For-of6.js b/tests/baselines/reference/ES5For-of6.js
new file mode 100644
index 00000000000..e7c81743509
--- /dev/null
+++ b/tests/baselines/reference/ES5For-of6.js
@@ -0,0 +1,15 @@
+//// [ES5For-of6.ts]
+for (var w of []) {
+    for (var v of []) {
+        var x = [w, v];
+    }
+}
+
+//// [ES5For-of6.js]
+for (var w, _i = 0, _a = []; _i < _a.length; _i++) {
+    w = _a[_i];
+    for (var v, _i_1 = 0, _a_1 = []; _i_1 < _a_1.length; _i_1++) {
+        v = _a_1[_i_1];
+        var x = [w, v];
+    }
+}
diff --git a/tests/baselines/reference/ES5For-of7.js b/tests/baselines/reference/ES5For-of7.js
new file mode 100644
index 00000000000..8b2355d9ad6
--- /dev/null
+++ b/tests/baselines/reference/ES5For-of7.js
@@ -0,0 +1,18 @@
+//// [ES5For-of7.ts]
+for (var w of []) {
+    var x = w;
+}
+
+for (var v of []) {
+    var x = [w, v];
+}
+
+//// [ES5For-of7.js]
+for (var w, _i = 0, _a = []; _i < _a.length; _i++) {
+    w = _a[_i];
+    var x = w;
+}
+for (var v, _i_1 = 0, _a_1 = []; _i_1 < _a_1.length; _i_1++) {
+    v = _a_1[_i_1];
+    var x = [w, v];
+}
diff --git a/tests/baselines/reference/parserES5ForOfStatement10.js b/tests/baselines/reference/parserES5ForOfStatement10.js
index 2b9dc843887..13a5defecb6 100644
--- a/tests/baselines/reference/parserES5ForOfStatement10.js
+++ b/tests/baselines/reference/parserES5ForOfStatement10.js
@@ -3,5 +3,6 @@ for (const v of X) {
 }
 
 //// [parserES5ForOfStatement10.js]
-for (var v of X) {
+for (var v, _i = 0, _a = X; _i < _a.length; _i++) {
+    v = _a[_i];
 }
diff --git a/tests/baselines/reference/parserES5ForOfStatement18.js b/tests/baselines/reference/parserES5ForOfStatement18.js
index 1df3e0bed7b..76a4610d74b 100644
--- a/tests/baselines/reference/parserES5ForOfStatement18.js
+++ b/tests/baselines/reference/parserES5ForOfStatement18.js
@@ -2,4 +2,6 @@
 for (var of of of) { }
 
 //// [parserES5ForOfStatement18.js]
-for (var of of of) { }
+for (var of, _i = 0, _a = of; _i < _a.length; _i++) {
+    of = _a[_i];
+}
diff --git a/tests/baselines/reference/parserES5ForOfStatement2.js b/tests/baselines/reference/parserES5ForOfStatement2.js
index dfcfb476172..5b622e7b7b9 100644
--- a/tests/baselines/reference/parserES5ForOfStatement2.js
+++ b/tests/baselines/reference/parserES5ForOfStatement2.js
@@ -3,5 +3,5 @@ for (var of X) {
 }
 
 //// [parserES5ForOfStatement2.js]
-for ( of X) {
+for (_i = 0, _a = X; _i < _a.length; _i++) {
 }
diff --git a/tests/baselines/reference/parserES5ForOfStatement21.js b/tests/baselines/reference/parserES5ForOfStatement21.js
index e02ed853cb5..08e2e173701 100644
--- a/tests/baselines/reference/parserES5ForOfStatement21.js
+++ b/tests/baselines/reference/parserES5ForOfStatement21.js
@@ -2,4 +2,5 @@
 for (var of of) { }
 
 //// [parserES5ForOfStatement21.js]
-for ( of of) { }
+for (_i = 0, _a = of; _i < _a.length; _i++) {
+}
diff --git a/tests/baselines/reference/parserES5ForOfStatement3.js b/tests/baselines/reference/parserES5ForOfStatement3.js
index 64892eb5094..fd021d578d5 100644
--- a/tests/baselines/reference/parserES5ForOfStatement3.js
+++ b/tests/baselines/reference/parserES5ForOfStatement3.js
@@ -3,5 +3,6 @@ for (var a, b of X) {
 }
 
 //// [parserES5ForOfStatement3.js]
-for (var a of X) {
+for (var a, _i = 0, _a = X; _i < _a.length; _i++) {
+    a = _a[_i];
 }
diff --git a/tests/baselines/reference/parserES5ForOfStatement4.js b/tests/baselines/reference/parserES5ForOfStatement4.js
index e17699a8662..bd64f807597 100644
--- a/tests/baselines/reference/parserES5ForOfStatement4.js
+++ b/tests/baselines/reference/parserES5ForOfStatement4.js
@@ -3,5 +3,6 @@ for (var a = 1 of X) {
 }
 
 //// [parserES5ForOfStatement4.js]
-for (var a = 1 of X) {
+for (var a, _i = 0, _a = X; _i < _a.length; _i++) {
+    a = _a[_i];
 }
diff --git a/tests/baselines/reference/parserES5ForOfStatement5.js b/tests/baselines/reference/parserES5ForOfStatement5.js
index 2eeb504365e..2c4a997a393 100644
--- a/tests/baselines/reference/parserES5ForOfStatement5.js
+++ b/tests/baselines/reference/parserES5ForOfStatement5.js
@@ -3,5 +3,6 @@ for (var a: number of X) {
 }
 
 //// [parserES5ForOfStatement5.js]
-for (var a of X) {
+for (var a, _i = 0, _a = X; _i < _a.length; _i++) {
+    a = _a[_i];
 }
diff --git a/tests/baselines/reference/parserES5ForOfStatement6.js b/tests/baselines/reference/parserES5ForOfStatement6.js
index 575368fcd20..0865d27fcb8 100644
--- a/tests/baselines/reference/parserES5ForOfStatement6.js
+++ b/tests/baselines/reference/parserES5ForOfStatement6.js
@@ -3,5 +3,6 @@ for (var a = 1, b = 2 of X) {
 }
 
 //// [parserES5ForOfStatement6.js]
-for (var a = 1 of X) {
+for (var a, _i = 0, _a = X; _i < _a.length; _i++) {
+    a = _a[_i];
 }
diff --git a/tests/baselines/reference/parserES5ForOfStatement7.js b/tests/baselines/reference/parserES5ForOfStatement7.js
index ac240494c18..42408cba235 100644
--- a/tests/baselines/reference/parserES5ForOfStatement7.js
+++ b/tests/baselines/reference/parserES5ForOfStatement7.js
@@ -3,5 +3,6 @@ for (var a: number = 1, b: string = "" of X) {
 }
 
 //// [parserES5ForOfStatement7.js]
-for (var a = 1 of X) {
+for (var a, _i = 0, _a = X; _i < _a.length; _i++) {
+    a = _a[_i];
 }
diff --git a/tests/baselines/reference/parserES5ForOfStatement8.js b/tests/baselines/reference/parserES5ForOfStatement8.js
index c926784adfe..fa42d260fa5 100644
--- a/tests/baselines/reference/parserES5ForOfStatement8.js
+++ b/tests/baselines/reference/parserES5ForOfStatement8.js
@@ -3,5 +3,6 @@ for (var v of X) {
 }
 
 //// [parserES5ForOfStatement8.js]
-for (var v of X) {
+for (var v, _i = 0, _a = X; _i < _a.length; _i++) {
+    v = _a[_i];
 }
diff --git a/tests/baselines/reference/parserES5ForOfStatement9.js b/tests/baselines/reference/parserES5ForOfStatement9.js
index 856dd5982af..612a5ec63a9 100644
--- a/tests/baselines/reference/parserES5ForOfStatement9.js
+++ b/tests/baselines/reference/parserES5ForOfStatement9.js
@@ -3,5 +3,6 @@ for (let v of X) {
 }
 
 //// [parserES5ForOfStatement9.js]
-for (var v of X) {
+for (var v, _i = 0, _a = X; _i < _a.length; _i++) {
+    v = _a[_i];
 }