Reviewers: Yang,

Message:
Here are the fixes required.

Description:
Fix test/build failures (win64 compile warning, isolate test parallel
compilation failure, gcmole issue, isolate test intermittant failure)

BUG=

Please review this at https://codereview.chromium.org/14265024/

SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge

Affected files:
  M src/bootstrapper.cc
  M src/heap.cc
  M src/hydrogen.cc


Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index e38603627cf84e0b6e1d707126e2a4e40dc8967b..f81d240a0bb5fb28f3d67c2e643d956d79702fe3 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -890,15 +890,15 @@ bool Genesis::InitializeGlobal(Handle<GlobalObject> inner_global,
     // overwritten by JS code.
     native_context()->set_array_function(*array_function);

-    // Cache the array maps
-    MaybeObject* cache_result = CacheInitialJSArrayMaps(*native_context(),
-                                                        *initial_map);
-    if (cache_result->IsFailure()) return false;
-
     if (FLAG_optimize_constructed_arrays) {
+      // Cache the array maps, needed by ArrayConstructorStub
+ MaybeObject* cache_result = CacheInitialJSArrayMaps(*native_context(),
+                                                          *initial_map);
+      if (cache_result->IsFailure()) return false;
+
       ArrayConstructorStub array_constructor_stub(isolate);
-      array_function->shared()->set_construct_stub(
-          *array_constructor_stub.GetCode(isolate));
+      Handle<Code> code = array_constructor_stub.GetCode(isolate);
+      array_function->shared()->set_construct_stub(*code);
     } else {
       array_function->shared()->set_construct_stub(
isolate->builtins()->builtin(Builtins::kCommonArrayConstructCode));
Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index f2f0b9bac7421f2441a0aa8787d0babeffea83ac..19735332f469222bc5fd962ae76fa96f424088ef 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -163,7 +163,8 @@ Heap::Heap()
 #endif
       promotion_queue_(this),
       configured_(false),
-      chunks_queued_for_free_(NULL) {
+      chunks_queued_for_free_(NULL),
+      relocation_mutex_(NULL) {
   // Allow build-time customization of the max semispace size. Building
   // V8 with snapshots and a non-default max semispace size is much
   // easier if you can define it as part of the build environment.
Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 57854b81415fc356578dcf40b7f5d4c223717d02..f1b21d7959a52659af295cfc1078f96fc6d82927 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -1860,7 +1860,7 @@ HValue* HGraphBuilder::JSArrayBuilder::EmitMapCode(HValue* context) {
       HGlobalObject(context));
   HInstruction* native_context = AddInstruction(new(zone())
HLoadNamedField(global_object, true, GlobalObject::kNativeContextOffset));
-  size_t offset = Context::kHeaderSize +
+  int offset = Context::kHeaderSize +
       kPointerSize * Context::JS_ARRAY_MAPS_INDEX;
   HInstruction* map_array = AddInstruction(new(zone())
       HLoadNamedField(native_context, true, offset));


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