Add _android files for building DartVM on Android

runtime/vm/gdbjit_android.cc

Index: runtime/vm/gdbjit_android.cc
diff --git a/runtime/vm/gdbjit_linux.cc b/runtime/vm/gdbjit_android.cc
similarity index 96%
copy from runtime/vm/gdbjit_linux.cc
copy to runtime/vm/gdbjit_android.cc
index 9fac94ef5e20c8c3eaa79f80787454f3683d0cc9..0c869fc5dcbc8a38b422206943fffb1f42c9d6b1 100644
--- a/runtime/vm/gdbjit_linux.cc
+++ b/runtime/vm/gdbjit_android.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2012, 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.

[siva, 2012/08/10 00:13:47]

Ditto comment.

[jackpal, 2012/08/13 22:59:42]

Answering all 3 JIT-related comments:

I tried using gdb to debug Android Dart. It failed as follows:

Reading symbols from ...dart-repo/dart/out/ReleaseIA32/dart...done.
Unsupported JIT protocol version in descriptor!

So it looks like GDB JIT is not currently supported.

I'll remove these files for now, until I have time to investigate GDB support.

[cshapiro, 2012/08/14 01:24:06]

What version of GDB are you using on the target?  They should all have JIT
support.  This message is often reported in error and if you restart the GDB
session it may go away.

 
@@ -6,7 +6,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "vm/gdbjit_linux.h"
+#include "vm/gdbjit_android.h"
 
 extern "C" {
   typedef enum {