Implementation of strict mode in SetElement.

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index 856031070209f43a469bdc7420b5aac02654a9e5..fb4c20a8de44349c64911d319be88abaf1e0509d 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -805,7 +805,9 @@ void Parser::ReportMessageAt(Scanner::Location source_location,
                            source_location.end_pos);
   Handle<JSArray> array = Factory::NewJSArray(args.length());
   for (int i = 0; i < args.length(); i++) {
-    SetElement(array, i, Factory::NewStringFromUtf8(CStrVector(args[i])));
+    SetElement(array, i,
+               Factory::NewStringFromUtf8(CStrVector(args[i])),
+               kNonStrictMode);
   }
   Handle<Object> result = Factory::NewSyntaxError(type, array);
   Top::Throw(*result, &location);
@@ -820,7 +822,7 @@ void Parser::ReportMessageAt(Scanner::Location source_location,
                            source_location.end_pos);
   Handle<JSArray> array = Factory::NewJSArray(args.length());
   for (int i = 0; i < args.length(); i++) {
-    SetElement(array, i, args[i]);
+    SetElement(array, i, args[i], kNonStrictMode);
   }
   Handle<Object> result = Factory::NewSyntaxError(type, array);
   Top::Throw(*result, &location);
@@ -4040,7 +4042,8 @@ Handle<Object> JsonParser::ParseJson(Handle<String> script,
       if (name_opt != NULL) {
         SetElement(array,
                    0,
-                   Factory::NewStringFromUtf8(CStrVector(name_opt)));
+                   Factory::NewStringFromUtf8(CStrVector(name_opt)),
+                   kNonStrictMode);
       }
       Handle<Object> result = Factory::NewSyntaxError(message, array);
       Top::Throw(*result, &location);
@@ -4112,7 +4115,7 @@ Handle<Object> JsonParser::ParseJsonObject() {
       if (value.is_null()) return Handle<Object>::null();
       uint32_t index;
       if (key->AsArrayIndex(&index)) {
-        SetOwnElement(json_object, index, value);
+        SetOwnElement(json_object, index, value, kNonStrictMode);
       } else if (key->Equals(Heap::Proto_symbol())) {
         // We can't remove the __proto__ accessor since it's hardcoded
         // in several places. Instead go along and add the value as