Convert PatchCache (and related methods) to use types rather than objects/maps.

src/stub-cache.h

Index: src/stub-cache.h
diff --git a/src/stub-cache.h b/src/stub-cache.h
index 1daffff4a957961d5c9f63f6f92e8e3d893f2b99..adfa44a3ef01a8e4ff794bffb66a1c9d57986450 100644
--- a/src/stub-cache.h
+++ b/src/stub-cache.h
@@ -93,7 +93,7 @@ class StubCache {
                            StrictModeFlag strict_mode = kNonStrictMode);
 
   Handle<Code> ComputeMonomorphicIC(Handle<Name> name,
-                                    Handle<Object> receiver,
+                                    Handle<Type> type,
                                     Handle<Code> handler,
                                     StrictModeFlag strict_mode);
 
@@ -173,7 +173,7 @@ class StubCache {
                                               KeyedAccessStoreMode store_mode,
                                               StrictModeFlag strict_mode);
 
-  Handle<Code> ComputePolymorphicIC(MapHandleList* receiver_maps,
+  Handle<Code> ComputePolymorphicIC(TypeHandleList* types,
                                     CodeHandleList* handlers,
                                     int number_of_valid_maps,
                                     Handle<Name> name,
@@ -532,11 +532,11 @@ class BaseLoadStoreStubCompiler: public StubCompiler {
   }
   virtual ~BaseLoadStoreStubCompiler() { }
 
-  Handle<Code> CompileMonomorphicIC(Handle<Map> receiver_map,
+  Handle<Code> CompileMonomorphicIC(Handle<Type> type,
                                     Handle<Code> handler,
                                     Handle<Name> name);
 
-  Handle<Code> CompilePolymorphicIC(MapHandleList* receiver_maps,
+  Handle<Code> CompilePolymorphicIC(TypeHandleList* types,
                                     CodeHandleList* handlers,
                                     Handle<Name> name,
                                     Code::StubType type,
@@ -608,7 +608,7 @@ class BaseLoadStoreStubCompiler: public StubCompiler {
 
   void InitializeRegisters();
 
-  bool HasHeapNumberMap(MapHandleList* receiver_maps);
+  bool IncludesNumberType(TypeHandleList* types);
 
   Code::Kind kind_;
   InlineCacheHolderFlag cache_holder_;