2011-11-09  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50960
	* class.c (gfc_find_derived_vtab): Make the vtab symbols FL_PARAMETER.
	* expr.c (gfc_simplify_expr): Prevent vtabs from being replaced with
	their value.
	* resolve.c (resolve_values): Use-associated symbols do not need to
	be resolved again.
	(resolve_fl_parameter): Make sure the symbol has a value.

From-SVN: r181199