Introduce runtime/platform directory for code shared between vm

runtime/bin/builtin.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef BIN_BUILTIN_H_
 #define BIN_BUILTIN_H_
 
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "bin/globals.h"
 #include "include/dart_api.h"
 
+#include "platform/globals.h"
+
 #ifdef DEBUG
 #define ASSERT(expr) assert(expr)
 #else
 #define ASSERT(expr) USE(expr)
 #endif
 
 #define FATAL(error)                                                           \
   fprintf(stderr, "%s\n", error);                                              \
   fflush(stderr);                                                              \
   abort();
@@ skipping 24 matching lines @@
                                           int argument_count);
 
   static const char Builtin_source_[];
 
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(Builtin);
 };
 
 
 #endif  // BIN_BUILTIN_H_