Revert "Handle non-JSObject heap objects using slow-path IC stub guarded by the map."

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 86 matching lines @@
                                Handle<JSObject> stub_holder,
                                Code::Kind kind,
                                Code::StubType type);
 
   Handle<Code> FindStoreHandler(Handle<Name> name,
                                 Handle<JSObject> receiver,
                                 Code::Kind kind,
                                 Code::StubType type,
                                 StrictModeFlag strict_mode);
 
-  Handle<Code> ComputeMonomorphicLoadIC(Handle<HeapObject> receiver,
+  Handle<Code> ComputeMonomorphicLoadIC(Handle<JSObject> receiver,
                                         Handle<Code> handler,
                                         Handle<Name> name);
 
-  Handle<Code> ComputeMonomorphicKeyedLoadIC(Handle<HeapObject> receiver,
+  Handle<Code> ComputeMonomorphicKeyedLoadIC(Handle<JSObject> receiver,
                                              Handle<Code> handler,
                                              Handle<Name> name);
 
-  Handle<Code> ComputeMonomorphicStoreIC(Handle<HeapObject> receiver,
+  Handle<Code> ComputeMonomorphicStoreIC(Handle<JSObject> receiver,
                                          Handle<Code> handler,
                                          Handle<Name> name,
                                          StrictModeFlag strict_mode);
 
-  Handle<Code> ComputeMonomorphicKeyedStoreIC(Handle<HeapObject> receiver,
+  Handle<Code> ComputeMonomorphicKeyedStoreIC(Handle<JSObject> receiver,
                                               Handle<Code> handler,
                                               Handle<Name> name,
                                               StrictModeFlag strict_mode);
 
   // Computes the right stub matching. Inserts the result in the
   // cache before returning.  This might compile a stub if needed.
   Handle<Code> ComputeLoadNonexistent(Handle<Name> name,
                                       Handle<JSObject> object);
 
   Handle<Code> ComputeLoadField(Handle<Name> name,
@@ skipping 1080 matching lines @@
   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_