[runtime] Simplify TO_INT32/TO_UINT32 abstract operations.

src/v8natives.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var $functionSourceString;
 var $globalEval;
 var $objectDefineOwnProperty;
 var $objectGetOwnPropertyDescriptor;
 var $toCompletePropertyDescriptor;
 
@@ skipping 785 matching lines @@
     %DefineAccessorPropertyUnchecked(obj, p, getter, setter, flag);
   }
   return true;
 }
 
 
 // ES5 section 15.4.5.1.
 function DefineArrayProperty(obj, p, desc, should_throw) {
   // Step 3 - Special handling for array index.
   if (!IS_SYMBOL(p)) {
-    var index = $toUint32(p);
+    var index = TO_UINT32(p);
     var emit_splice = false;
     if ($toString(index) == p && index != 4294967295) {
       var length = obj.length;
       if (index >= length && %IsObserved(obj)) {
         emit_splice = true;
         $observeBeginPerformSplice(obj);
       }
 
       var length_desc = GetOwnPropertyJS(obj, "length");
       if ((index >= length && !length_desc.isWritable()) ||
@@ skipping 75 matching lines @@
   var desc = GetOwnPropertyJS(TO_OBJECT(obj), p);
   return FromPropertyDescriptor(desc);
 }
 
 
 // For Harmony proxies
 function ToNameArray(obj, trap, includeSymbols) {
   if (!IS_SPEC_OBJECT(obj)) {
     throw MakeTypeError(kProxyNonObjectPropNames, trap, obj);
   }
-  var n = $toUint32(obj.length);
+  var n = TO_UINT32(obj.length);
   var array = new GlobalArray(n);
   var realLength = 0;
   var names = { __proto__: null };  // TODO(rossberg): use sets once ready.
   for (var index = 0; index < n; index++) {
     var s = $toName(obj[index]);
     // TODO(rossberg): adjust once there is a story for symbols vs proxies.
     if (IS_SYMBOL(s) && !includeSymbols) continue;
     if (%HasOwnProperty(names, s)) {
       throw MakeTypeError(kProxyRepeatedPropName, trap, s);
     }
@@ skipping 895 matching lines @@
   to.ObjectGetOwnPropertyKeys = ObjectGetOwnPropertyKeys;
   to.ObjectHasOwnProperty = ObjectHasOwnProperty;
   to.ObjectIsFrozen = ObjectIsFrozen;
   to.ObjectIsSealed = ObjectIsSealed;
   to.ObjectToString = ObjectToString;
   to.OwnPropertyKeys = OwnPropertyKeys;
   to.ToNameArray = ToNameArray;
 });
 
 })