Fix a subtle multiclass bug: when using class inheritance on a toplevel 'defm', make sure to properly resolve references.
Fix a subtle multiclass bug: when using class inheritance on
a toplevel 'defm', make sure to properly resolve references.



git-svn-id: a4a6f32337ebd29ad4763b423022f00f68d1c7b7@106570 91177308-0d34-0410-b5e6-96231b3b80d8

lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx