Fix vm code base so that it can be built for --arch=simarm (no snapshot yet).

runtime/vm/object_store.cc

Index: runtime/vm/object_store.cc
===================================================================
--- runtime/vm/object_store.cc	(revision 17245)
+++ runtime/vm/object_store.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, 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.
 
@@ -115,6 +115,8 @@
   }
   ASSERT(this->stack_overflow() == Instance::null());
   ASSERT(this->out_of_memory() == Instance::null());
+  // TODO(regis): Reenable this code for arm and mips when possible.
+#if defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64)
   Object& result = Object::Handle();
 
   result = Exceptions::Create(Exceptions::kStackOverflow,
@@ -129,6 +131,7 @@
     return false;
   }
   set_out_of_memory(Instance::Cast(result));
+#endif
   return true;
 }