diff --git a/test/fixtures/transformation/es6-block-scoping/hoisting/actual.js b/test/fixtures/transformation/es6-block-scoping/hoisting/actual.js
index 8baf9f54a2..03757cd57d 100644
--- a/test/fixtures/transformation/es6-block-scoping/hoisting/actual.js
+++ b/test/fixtures/transformation/es6-block-scoping/hoisting/actual.js
@@ -1,4 +1,4 @@
-for (let i of [1, 2, 3]) {
+for (let i of nums) {
   var x = 5;
   fns.push(function () {
     return i * x;
diff --git a/test/fixtures/transformation/es6-block-scoping/hoisting/expected.js b/test/fixtures/transformation/es6-block-scoping/hoisting/expected.js
index f8cec2e342..661e28888b 100644
--- a/test/fixtures/transformation/es6-block-scoping/hoisting/expected.js
+++ b/test/fixtures/transformation/es6-block-scoping/hoisting/expected.js
@@ -5,7 +5,7 @@ var _didIteratorError = false;
 var _iteratorError = undefined;
 
 try {
-  for (var _iterator = [1, 2, 3][Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+  for (var _iterator = nums[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
     var x;
 
     (function () {
@@ -30,4 +30,4 @@ try {
       throw _iteratorError;
     }
   }
-}
\ No newline at end of file
+}
diff --git a/test/fixtures/transformation/es7-comprehensions/arguments/actual.js b/test/fixtures/transformation/es7-comprehensions/arguments/actual.js
index 95f9a4df57..5b07664e61 100644
--- a/test/fixtures/transformation/es7-comprehensions/arguments/actual.js
+++ b/test/fixtures/transformation/es7-comprehensions/arguments/actual.js
@@ -1,5 +1,5 @@
 function add() {
-  return [for (i of [1, 2, 3]) i * arguments[0]];
+  return [for (i of nums) i * arguments[0]];
 }
 
 add(5);
diff --git a/test/fixtures/transformation/es7-comprehensions/arguments/expected.js b/test/fixtures/transformation/es7-comprehensions/arguments/expected.js
index 610d5ef84b..ea21a12ae3 100644
--- a/test/fixtures/transformation/es7-comprehensions/arguments/expected.js
+++ b/test/fixtures/transformation/es7-comprehensions/arguments/expected.js
@@ -10,7 +10,7 @@ function add() {
     var _iteratorError = undefined;
 
     try {
-      for (var _iterator = [1, 2, 3][Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      for (var _iterator = nums[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
         var i = _step.value;
 
         _ref.push(i * _arguments[0]);
@@ -34,4 +34,4 @@ function add() {
   })();
 }
 
-add(5);
\ No newline at end of file
+add(5);
diff --git a/test/fixtures/transformation/es7-comprehensions/array-expression-single-if/expected.js b/test/fixtures/transformation/es7-comprehensions/array-expression-single-if/expected.js
index e0815299e2..f36d1c6137 100644
--- a/test/fixtures/transformation/es7-comprehensions/array-expression-single-if/expected.js
+++ b/test/fixtures/transformation/es7-comprehensions/array-expression-single-if/expected.js
@@ -2,32 +2,15 @@
 
 var arr = (function () {
   var _arr = [];
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
+  var _arr2 = [1, 2, 3];
 
-  try {
-    for (var _iterator = [1, 2, 3][Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var i = _step.value;
+  for (var _i = 0; _i < _arr2.length; _i++) {
+    var i = _arr2[_i];
 
-      if (i > 1) {
-        _arr.push(i * i);
-      }
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator["return"]) {
-        _iterator["return"]();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
+    if (i > 1) {
+      _arr.push(i * i);
     }
   }
 
   return _arr;
-})();
\ No newline at end of file
+})();
diff --git a/test/fixtures/transformation/es7-comprehensions/array-expression-single/actual.js b/test/fixtures/transformation/es7-comprehensions/array-expression-single/actual.js
index 9dda19048b..2087ae351b 100644
--- a/test/fixtures/transformation/es7-comprehensions/array-expression-single/actual.js
+++ b/test/fixtures/transformation/es7-comprehensions/array-expression-single/actual.js
@@ -1 +1 @@
-var arr = [for (i of nums) i * i];
+var arr = [for (i of [1, 2, 3]) i * i];
diff --git a/test/fixtures/transformation/es7-comprehensions/array-expression-single/expected.js b/test/fixtures/transformation/es7-comprehensions/array-expression-single/expected.js
index 10acf74be9..0758f1ede6 100644
--- a/test/fixtures/transformation/es7-comprehensions/array-expression-single/expected.js
+++ b/test/fixtures/transformation/es7-comprehensions/array-expression-single/expected.js
@@ -2,29 +2,12 @@
 
 var arr = (function () {
   var _arr = [];
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
+  var _arr2 = [1, 2, 3];
 
-  try {
-    for (var _iterator = nums[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var i = _step.value;
+  for (var _i = 0; _i < _arr2.length; _i++) {
+    var i = _arr2[_i];
 
-      _arr.push(i * i);
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator["return"]) {
-        _iterator["return"]();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
+    _arr.push(i * i);
   }
 
   return _arr;