Created collector class and used it to collect identifiers during scanning.

src/runtime.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 401 matching lines @@
     int stub_id;
     // Size of result, if complex (larger than a single pointer),
     // otherwise zero.
     int result_size;
   };
 
   // Get the runtime function with the given function id.
   static Function* FunctionForId(FunctionId fid);
 
   // Get the runtime function with the given name.
-  static Function* FunctionForName(const char* name);
+  static Function* FunctionForName(Vector<const char> name);
 
   static int StringMatch(Handle<String> sub, Handle<String> pat, int index);
 
   static bool IsUpperCaseChar(uint16_t ch);
 
   // TODO(1240886): The following three methods are *not* handle safe,
   // but accept handle arguments. This seems fragile.
 
   // Support getting the characters in a string using [] notation as
   // in Firefox/SpiderMonkey, Safari and Opera.
@@ skipping 20 matching lines @@
                                                 int position);
 
   // Helper functions used stubs.
   static void PerformGC(Object* result);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_