Replace SetObjectProperty / DefineObjectProperty with less powerful alternatives where relevant.

src/json-parser.h

 // Copyright 2011 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_JSON_PARSER_H_
 #define V8_JSON_PARSER_H_
 
 #include "src/v8.h"
 
 #include "src/char-predicates-inl.h"
@@ skipping 416 matching lines @@
         } else {
           transitioning = false;
         }
       }
 
       DCHECK(!transitioning);
 
       // Commit the intermediate state to the object and stop transitioning.
       CommitStateToJsonObject(json_object, map, &properties);
 
-      Runtime::DefineObjectProperty(json_object, key, value, NONE).Check();
+      JSObject::DefinePropertyOrElement(json_object, key, value).Check();
     } while (transitioning && MatchSkipWhiteSpace(','));
 
     // If we transitioned until the very end, transition the map now.
     if (transitioning) {
       CommitStateToJsonObject(json_object, map, &properties);
     } else {
       while (MatchSkipWhiteSpace(',')) {
         HandleScope local_scope(isolate());
         if (c0_ != '"') return ReportUnexpectedCharacter();
 
@@ skipping 15 matching lines @@
         Handle<String> key;
         Handle<Object> value;
 
         key = ParseJsonInternalizedString();
         if (key.is_null() || c0_ != ':') return ReportUnexpectedCharacter();
 
         AdvanceSkipWhitespace();
         value = ParseJsonValue();
         if (value.is_null()) return ReportUnexpectedCharacter();
 
-        Runtime::DefineObjectProperty(json_object, key, value, NONE).Check();
+        JSObject::DefinePropertyOrElement(json_object, key, value).Check();
       }
     }
 
     if (c0_ != '}') {
       return ReportUnexpectedCharacter();
     }
   }
   AdvanceSkipWhitespace();
   return scope.CloseAndEscape(json_object);
 }
@@ skipping 351 matching lines @@
 
   DCHECK_EQ('"', c0_);
   // Advance past the last '"'.
   AdvanceSkipWhitespace();
   return result;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_JSON_PARSER_H_