Do not emit pointer information for embedded singleton VM Isolate objects while generating code. Th…

vm/raw_object.h

Index: vm/raw_object.h
===================================================================
--- vm/raw_object.h	(revision 16624)
+++ vm/raw_object.h	(working copy)
@@ -260,6 +260,13 @@
     uword addr = reinterpret_cast<uword>(this);
     return (addr & kNewObjectAlignmentOffset) == kOldObjectAlignmentOffset;
   }
+  bool IsVMHeapObject() const {
+    // TODO(asiva): Need a better way to represent VM heap objects, for
+    // now we use the premarked property for identifying objects in the
+    // VM heap.
+    ASSERT(IsHeapObject());
+    return IsMarked();
+  }
 
   // Support for GC marking bit.
   bool IsMarked() const {