WeakHashTable::Lookup() handlified and ObjectHashTable's interface cleaned up.

src/lithium-codegen.cc

 // Copyright 2013 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.
 
 #include "v8.h"
 
 #include "lithium-codegen.h"
 
 #if V8_TARGET_ARCH_IA32
 #include "ia32/lithium-ia32.h"
@@ skipping 137 matching lines @@
   }
   return -1;
 }
 
 
 static void AddWeakObjectToCodeDependency(Isolate* isolate,
                                           Handle<Object> object,
                                           Handle<Code> code) {
   Heap* heap = isolate->heap();
   heap->EnsureWeakObjectToCodeTable();
-  Handle<DependentCode> dep(heap->LookupWeakObjectToCodeDependency(*object));
+  Handle<DependentCode> dep(heap->LookupWeakObjectToCodeDependency(object));
   dep = DependentCode::Insert(dep, DependentCode::kWeakCodeGroup, code);
   heap->AddWeakObjectToCodeDependency(object, dep);
 }
 
 
 void LCodeGenBase::RegisterWeakObjectsInOptimizedCode(Handle<Code> code) {
   ASSERT(code->is_optimized_code());
   ZoneList<Handle<Map> > maps(1, zone());
   ZoneList<Handle<JSObject> > objects(1, zone());
   ZoneList<Handle<Cell> > cells(1, zone());
@@ skipping 35 matching lines @@
   for (int i = 0; i < objects.length(); i++) {
     AddWeakObjectToCodeDependency(isolate(), objects.at(i), code);
   }
   for (int i = 0; i < cells.length(); i++) {
     AddWeakObjectToCodeDependency(isolate(), cells.at(i), code);
   }
 }
 
 
 } }  // namespace v8::internal