[core]: * r27621 allows overriding the 'name' vtable method from PIR (jonathan++)   but results in an infinite recursion if tracing is turned on.  This   change avoids that.
[core]:
* r27621 allows overriding the 'name' vtable method from PIR (jonathan++)
  but results in an infinite recursion if tracing is turned on.  This
  change avoids that.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@27635 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot