Port r9643 to the 3.3 branch.

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index 061786fb0426d13edbe4b2ef1481d498760638fd..7ad64407a4d55a95691aaf93679091110d8d5e66 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -4970,11 +4970,14 @@ bool ParserApi::Parse(CompilationInfo* info) {
   FunctionLiteral* result = NULL;
   Handle<Script> script = info->script();
   if (info->is_lazy()) {
-    Parser parser(script, true, NULL, NULL);
+    bool allow_natives_syntax =
+        FLAG_allow_natives_syntax ||
+        info->is_native();
+    Parser parser(script, allow_natives_syntax, NULL, NULL);
     result = parser.ParseLazy(info);
   } else {
     bool allow_natives_syntax =
-        info->allows_natives_syntax() || FLAG_allow_natives_syntax;
+        info->is_native() || FLAG_allow_natives_syntax;
     ScriptDataImpl* pre_data = info->pre_parse_data();
     Parser parser(script, allow_natives_syntax, info->extension(), pre_data);
     if (pre_data != NULL && pre_data->has_error()) {