Simplify access to peer pointer for external strings.

runtime/vm/dart_api_impl.h

Index: runtime/vm/dart_api_impl.h
===================================================================
--- runtime/vm/dart_api_impl.h	(revision 26169)
+++ runtime/vm/dart_api_impl.h	(working copy)
@@ -191,6 +191,9 @@
   static void InitHandles();
 
   // Helper function to get the peer value of an external string object.
+  static bool ExternalStringGetPeerHelper(Dart_NativeArguments args,
+                                          int arg_index,

[srdjan, 2013/08/15 01:47:06]

s/int/intptr_t/ ?

[siva, 2013/08/15 17:05:18]

The Dart C API uses 'int' for all native argument indexes. I am trying to
think why it was done like that (maybe to avoid have dartium code having to use
intptr_t all over the place). At any rate I will check and see if it makes sense
to uniformly change this to 'intptr_t' in the API

+                                          void** peer);
   static bool ExternalStringGetPeerHelper(Dart_Handle object, void** peer);
 
   // Helper function to set the return value of native functions.