[runtime] Clean up symbol access in identity hash code

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index cafa49705e34bb2cb29147d4c82e861ff4577290..929c6ca9b3d50f20162571d9220adc7a5477cba8 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -1933,7 +1933,8 @@ class JSReceiver: public HeapObject {
 
   // Retrieves a permanent object identity hash code. The undefined value might
   // be returned in case no hash was created yet.
-  inline Object* GetIdentityHash();
+  static inline Handle<Object> GetIdentityHash(Isolate* isolate,
+                                               Handle<JSReceiver> object);
 
   // Retrieves a permanent object identity hash code. May create and store a
   // hash code if needed and none exists.
@@ -2526,7 +2527,8 @@ class JSObject: public JSReceiver {
       Handle<JSObject> object,
       Handle<Object> value);
 
-  MUST_USE_RESULT Object* GetIdentityHash();
+  static Handle<Object> GetIdentityHash(Isolate* isolate,
+                                        Handle<JSObject> object);
 
   static Handle<Smi> GetOrCreateIdentityHash(Handle<JSObject> object);
 
@@ -9801,7 +9803,8 @@ class JSProxy: public JSReceiver {
   typedef FixedBodyDescriptor<JSReceiver::kPropertiesOffset, kSize, kSize>
       BodyDescriptor;
 
-  MUST_USE_RESULT Object* GetIdentityHash();
+  static Handle<Object> GetIdentityHash(Isolate* isolate,
+                                        Handle<JSProxy> receiver);
 
   static Handle<Smi> GetOrCreateIdentityHash(Handle<JSProxy> proxy);