2012-01-16 Tobias Burnus <burnus@net-b.de>

2012-01-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/51809
        * class.c (gfc_find_derived_vtab): Mark __vtab and
        __def_init as FL_VARIABLE not as FL_PARAMETER.
        * expr.c (gfc_simplify_expr): Remove special
        handling of __vtab.
        * resolve.c (resolve_values): Ditto.
        * trans-decl.c (gfc_get_symbol_decl): Mark __vtab
        and __def_init as TREE_READONLY.

2012-01-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/51809
        * gfortran.dg/use_20.f90: New

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@183219 138bc75d-0d04-0410-961f-82ee72b054a4