Revert "patch from issue 13993029"

This reverts commit 2d49d456dd09a8f8ffae87f777d5f10b587534e8.
Revert patch with incorrect description

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/typedarray.js

@@ -86,7 +86,8 @@ function ArrayBufferSlice(start, end) {
 
 function CreateTypedArrayConstructor(name, elementSize, arrayId, constructor) {
   function ConstructByArrayBuffer(obj, buffer, byteOffset, length) {
-    var offset = IS_UNDEFINED(byteOffset) ? 0 : TO_POSITIVE_INTEGER(byteOffset);
+    var offset = IS_UNDEFINED(byteOffset)
+      ? 0 : offset = TO_POSITIVE_INTEGER(byteOffset);
 
     if (offset % elementSize !== 0) {
       throw MakeRangeError("invalid_typed_array_alignment",