Merge isolates to bleeding_edge.

src/mksnapshot.cc

Index: src/mksnapshot.cc
===================================================================
--- src/mksnapshot.cc	(revision 7267)
+++ src/mksnapshot.cc	(working copy)
@@ -223,12 +223,12 @@
   // Make sure all builtin scripts are cached.
   { HandleScope scope;
     for (int i = 0; i < i::Natives::GetBuiltinsCount(); i++) {
-      i::Bootstrapper::NativesSourceLookup(i);
+      i::Isolate::Current()->bootstrapper()->NativesSourceLookup(i);
     }
   }
   // If we don't do this then we end up with a stray root pointing at the
   // context even after we have disposed of the context.
-  i::Heap::CollectAllGarbage(true);
+  HEAP->CollectAllGarbage(true);
   i::Object* raw_context = *(v8::Utils::OpenHandle(*context));
   context.Dispose();
   CppByteSink sink(argv[1]);