Revert "Unify calling to GenerateFastApiCallBody before stubbing it"

src/stub-cache.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 465 matching lines @@
   // kInvalidProtoDepth) save the object at the given depth by moving
   // it to [esp + kPointerSize].
   Register CheckPrototypes(Handle<HeapType> type,
                            Register object_reg,
                            Handle<JSObject> holder,
                            Register holder_reg,
                            Register scratch1,
                            Register scratch2,
                            Handle<Name> name,
                            Label* miss,
+                           PrototypeCheckType check = CHECK_ALL_MAPS) {
+    return CheckPrototypes(type, object_reg, holder, holder_reg, scratch1,
+                           scratch2, name, kInvalidProtoDepth, miss, check);
+  }
+
+  Register CheckPrototypes(Handle<HeapType> type,
+                           Register object_reg,
+                           Handle<JSObject> holder,
+                           Register holder_reg,
+                           Register scratch1,
+                           Register scratch2,
+                           Handle<Name> name,
+                           int save_at_depth,
+                           Label* miss,
                            PrototypeCheckType check = CHECK_ALL_MAPS);
 
   void GenerateBooleanCheck(Register object, Label* miss);
 
  protected:
   Handle<Code> GetCodeWithFlags(Code::Flags flags, const char* name);
   Handle<Code> GetCodeWithFlags(Code::Flags flags, Handle<Name> name);
 
   ExtraICState extra_state() { return extra_ic_state_; }
 
@@ skipping 511 matching lines @@
   Handle<FunctionTemplateInfo> expected_receiver_type() const {
     ASSERT(is_simple_api_call());
     return expected_receiver_type_;
   }
 
   Handle<CallHandlerInfo> api_call_info() const {
     ASSERT(is_simple_api_call());
     return api_call_info_;
   }
 
-  enum HolderLookup {
-    kHolderNotFound,
-    kHolderIsReceiver,
-    kHolderIsPrototypeOfMap
-  };
-  // Returns a map whose prototype has the expected type in the
-  // prototype chain between the two arguments
-  // null will be returned if the first argument has that property
-  // lookup will be set accordingly
-  Handle<Map> LookupHolderOfExpectedType(Handle<JSObject> receiver,
-                                         Handle<JSObject> object,
-                                         Handle<JSObject> holder,
-                                         HolderLookup* holder_lookup) const;
+  // Returns the depth of the object having the expected type in the
+  // prototype chain between the two arguments.
+  int GetPrototypeDepthOfExpectedType(Handle<JSObject> object,
+                                      Handle<JSObject> holder) const;
 
   bool IsCompatibleReceiver(Object* receiver) {
     ASSERT(is_simple_api_call());
     if (expected_receiver_type_.is_null()) return true;
     return expected_receiver_type_->IsTemplateFor(receiver);
   }
 
  private:
   void Initialize(Handle<JSFunction> function);
 
   // Determines whether the given function can be called using the
   // fast api call builtin.
   void AnalyzePossibleApiFunction(Handle<JSFunction> function);
 
   Handle<JSFunction> constant_function_;
   bool is_simple_api_call_;
   Handle<FunctionTemplateInfo> expected_receiver_type_;
   Handle<CallHandlerInfo> api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_