[Parser] Avoid on-the-fly internalization for natives_syntax.

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 0319f745bde9676cb339ab651702f5922291304f..ac28277f2ad52182893136ac5dad6236f1ddac39 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -1028,13 +1028,8 @@ class Runtime : public AllStatic {
 
   static const int kNotFound = -1;
 
-  // Add internalized strings for all the intrinsic function names to a
-  // StringDictionary.
-  static void InitializeIntrinsicFunctionNames(Isolate* isolate,
-                                               Handle<NameDictionary> dict);
-
-  // Get the intrinsic function with the given name, which must be internalized.
-  static const Function* FunctionForName(Handle<String> name);
+  // Get the intrinsic function with the given name.
+  static const Function* FunctionForName(const unsigned char* name, int length);
 
   // Get the intrinsic function with the given FunctionId.
   static const Function* FunctionForId(FunctionId id);