Fixing comments to pull request

src/createElement.js

@@ -1,12 +1,12 @@
 define(function() {
   var createElement = function() {
     if (typeof document.createElement !== 'function') {
-      var oldCreateElement = document.createElement;
-      document.createElement = function (tagName) {
-        return oldCreateElement(tagName);
-      };
+      // This is the case in IE7, where the type of createElement is "object".
+      // For this reason, we cannot call apply() as Object is not a Function.
+      return document.createElement(arguments[0]);
+    } else {
+      return document.createElement.apply(document, arguments);
     }
-    return document.createElement.apply(document, arguments);
   };
   return createElement;
 });

src/testProps.js

@@ -24,7 +24,7 @@ define(['contains', 'mStyle', 'createElement', 'nativeTestProps', 'is', 'cssToDO
     }
 
     // Otherwise do it properly
-    var afterInit, i, prop, before;
+    var afterInit, i, propsLength, prop, before;
 
     // If we don't have a style element, that means
     // we're running async or after the core tests,
@@ -44,7 +44,8 @@ define(['contains', 'mStyle', 'createElement', 'nativeTestProps', 'is', 'cssToDO
       }
     }
 
-    for ( i = 0; i < props.length; i++ ) {
+    propsLength = props.length;
+    for ( i = 0; i < propsLength; i++ ) {
       prop = props[i];
       before = mStyle.style[prop];