[ic] Load IC data handlers now support prototype chain checks with global and dictionary objects.

src/code-stub-assembler.h

 // Copyright 2016 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.
 
 #ifndef V8_CODE_STUB_ASSEMBLER_H_
 #define V8_CODE_STUB_ASSEMBLER_H_
 
 #include <functional>
 
 #include "src/compiler/code-assembler.h"
@@ skipping 1089 matching lines @@
 
   void HandleLoadICHandlerCase(
       const LoadICParameters* p, compiler::Node* handler, Label* miss,
       ElementSupport support_elements = kOnlyProperties);
 
   void HandleLoadICProtoHandler(const LoadICParameters* p,
                                 compiler::Node* handler, Variable* var_holder,
                                 Variable* var_smi_handler,
                                 Label* if_smi_handler, Label* miss);
 
+  void CheckPrototype(compiler::Node* prototype_cell, compiler::Node* name,
+                      Label* miss);
+
   void NameDictionaryNegativeLookup(compiler::Node* object,
                                     compiler::Node* name, Label* miss);
 
   void HandleStoreFieldAndReturn(compiler::Node* handler_word,
                                  compiler::Node* holder,
                                  Representation representation,
                                  compiler::Node* value,
                                  bool transition_to_field, Label* miss);
 
   void HandleStoreICSmiHandlerCase(compiler::Node* handler_word,
@@ skipping 52 matching lines @@
   static const int kElementLoopUnrollThreshold = 8;
 };
 
 #define CSA_ASSERT(x) Assert((x), #x, __FILE__, __LINE__)
 
 DEFINE_OPERATORS_FOR_FLAGS(CodeStubAssembler::AllocationFlags);
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_CODE_STUB_ASSEMBLER_H_