Add GetProperty/GetElement to JSReceiver and use it where possible

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/assert-scope.h"
@@ skipping 1246 matching lines @@
   MUST_USE_RESULT static Maybe<bool> SetDataProperty(LookupIterator* it,
                                                      Handle<Object> value);
   MUST_USE_RESULT static Maybe<bool> AddDataProperty(
       LookupIterator* it, Handle<Object> value, PropertyAttributes attributes,
       ShouldThrow should_throw, StoreFromKeyed store_mode);
   MUST_USE_RESULT static inline MaybeHandle<Object> GetPropertyOrElement(
       Handle<Object> object, Handle<Name> name);
   MUST_USE_RESULT static inline MaybeHandle<Object> GetPropertyOrElement(
       Handle<Object> receiver, Handle<Name> name, Handle<JSReceiver> holder);
   MUST_USE_RESULT static inline MaybeHandle<Object> GetProperty(
-      Isolate* isolate, Handle<Object> object, const char* key);
-  MUST_USE_RESULT static inline MaybeHandle<Object> GetProperty(
       Handle<Object> object, Handle<Name> name);
 
   MUST_USE_RESULT static MaybeHandle<Object> GetPropertyWithAccessor(
       LookupIterator* it);
   MUST_USE_RESULT static Maybe<bool> SetPropertyWithAccessor(
       LookupIterator* it, Handle<Object> value, ShouldThrow should_throw);
 
   MUST_USE_RESULT static MaybeHandle<Object> GetPropertyWithDefinedGetter(
       Handle<Object> receiver,
       Handle<JSReceiver> getter);
@@ skipping 532 matching lines @@
   // Implementation of [[HasProperty]], ECMA-262 5th edition, section 8.12.6.
   MUST_USE_RESULT static Maybe<bool> HasProperty(LookupIterator* it);
   MUST_USE_RESULT static inline Maybe<bool> HasProperty(
       Handle<JSReceiver> object, Handle<Name> name);
   MUST_USE_RESULT static inline Maybe<bool> HasElement(
       Handle<JSReceiver> object, uint32_t index);
 
   MUST_USE_RESULT static inline Maybe<bool> HasOwnProperty(
       Handle<JSReceiver> object, Handle<Name> name);
 
+  MUST_USE_RESULT static inline MaybeHandle<Object> GetProperty(
+      Isolate* isolate, Handle<JSReceiver> receiver, const char* key);
+  MUST_USE_RESULT static inline MaybeHandle<Object> GetProperty(
+      Handle<JSReceiver> receiver, Handle<Name> name);
+  MUST_USE_RESULT static inline MaybeHandle<Object> GetElement(
+      Isolate* isolate, Handle<JSReceiver> receiver, uint32_t index);
+
   // Implementation of ES6 [[Delete]]
   MUST_USE_RESULT static Maybe<bool> DeletePropertyOrElement(
       Handle<JSReceiver> object, Handle<Name> name,
       LanguageMode language_mode = SLOPPY);
   MUST_USE_RESULT static Maybe<bool> DeleteProperty(
       Handle<JSReceiver> object, Handle<Name> name,
       LanguageMode language_mode = SLOPPY);
   MUST_USE_RESULT static Maybe<bool> DeleteProperty(LookupIterator* it,
                                                     LanguageMode language_mode);
   MUST_USE_RESULT static Maybe<bool> DeleteElement(
@@ skipping 9042 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_