Compile and simulate first dart function on arm generated from ast.

runtime/vm/object.h

Index: runtime/vm/object.h
===================================================================
--- runtime/vm/object.h	(revision 19151)
+++ runtime/vm/object.h	(working copy)
@@ -2227,6 +2227,9 @@
   intptr_t size() const { return raw_ptr()->size_; }  // Excludes HeaderSize().
   RawCode* code() const { return raw_ptr()->code_; }
   RawArray* object_pool() const { return raw_ptr()->object_pool_; }
+  static intptr_t object_pool_offset() {
+    return OFFSET_OF(RawInstructions, object_pool_);
+  }
 
   uword EntryPoint() const {
     return reinterpret_cast<uword>(raw_ptr()) + HeaderSize();