Move megamorphic cache table into the Dart heap.

runtime/vm/code_generator.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/code_generator.h"
 
 #include "vm/assembler.h"
 #include "vm/ast.h"
 #include "vm/code_patcher.h"
 #include "vm/compiler.h"
@@ skipping 994 matching lines @@
 //   Arg1: ICData object.
 //   Arg2: Arguments descriptor array.
 
 //   Returns: target function to call.
 DEFINE_RUNTIME_ENTRY(MegamorphicCacheMissHandler, 3) {
   const Instance& receiver = Instance::CheckedHandle(arguments.ArgAt(0));
   const ICData& ic_data = ICData::CheckedHandle(arguments.ArgAt(1));
   const Array& descriptor = Array::CheckedHandle(arguments.ArgAt(2));
   const String& name = String::Handle(ic_data.target_name());
   const MegamorphicCache& cache = MegamorphicCache::Handle(
-      isolate->megamorphic_cache_table()->Lookup(name, descriptor));
+      MegamorphicCacheTable::Lookup(isolate, name, descriptor));
   Class& cls = Class::Handle(receiver.clazz());
   ASSERT(!cls.IsNull());
   if (FLAG_trace_ic || FLAG_trace_ic_miss_in_optimized) {
     OS::PrintErr("Megamorphic IC miss, class=%s, function=%s\n",
                  cls.ToCString(), name.ToCString());
   }
 
   ArgumentsDescriptor args_desc(descriptor);
   Function& target_function = Function::Handle(
       Resolver::ResolveDynamicForReceiverClass(cls,
@@ skipping 829 matching lines @@
   const intptr_t elm_size = old_data.ElementSizeInBytes();
   const TypedData& new_data =
       TypedData::Handle(TypedData::New(cid, new_size, Heap::kOld));
   TypedData::Copy(new_data, 0, old_data, 0, old_size * elm_size);
   typed_data_cell.SetAt(0, new_data);
   arguments.SetReturn(new_data);
 }
 
 
 }  // namespace dart