Store JSGlobalProxy's identity hash directly on the proxy itself

src/objects-inl.h

 // Copyright 2012 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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 4903 matching lines @@
 ACCESSORS(JSFunction, shared, SharedFunctionInfo, kSharedFunctionInfoOffset)
 ACCESSORS(JSFunction, literals_or_bindings, FixedArray, kLiteralsOffset)
 ACCESSORS(JSFunction, next_function_link, Object, kNextFunctionLinkOffset)
 
 ACCESSORS(GlobalObject, builtins, JSBuiltinsObject, kBuiltinsOffset)
 ACCESSORS(GlobalObject, native_context, Context, kNativeContextOffset)
 ACCESSORS(GlobalObject, global_context, Context, kGlobalContextOffset)
 ACCESSORS(GlobalObject, global_receiver, JSObject, kGlobalReceiverOffset)
 
 ACCESSORS(JSGlobalProxy, native_context, Object, kNativeContextOffset)
+ACCESSORS(JSGlobalProxy, hash, Object, kHashOffset)
 
 ACCESSORS(AccessorInfo, name, Object, kNameOffset)
 ACCESSORS_TO_SMI(AccessorInfo, flag, kFlagOffset)
 ACCESSORS(AccessorInfo, expected_receiver_type, Object,
           kExpectedReceiverTypeOffset)
 
 ACCESSORS(DeclaredAccessorDescriptor, serialized_data, ByteArray,
           kSerializedDataOffset)
 
 ACCESSORS(DeclaredAccessorInfo, descriptor, DeclaredAccessorDescriptor,
@@ skipping 1916 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_