[patch, fortran] [4.3 Regression] ICE: left-over "@iostat" variable polutes namespace

[Jerry DeLisle]

I will commit the following one-liner under obvious and simple rule.

Regression tested on x86-64.  Test case attached.

Jerry

Index: trans-io.c
===================================================================
--- trans-io.c  (revision 131460)
+++ trans-io.c  (working copy)
@@ -1095,6 +1095,7 @@ create_dummy_iostat (void)
    st->n.sym->ts.type = BT_INTEGER;
    st->n.sym->ts.kind = gfc_default_integer_kind;
    gfc_set_sym_referenced (st->n.sym);
+  gfc_commit_symbol (st->n.sym);
    st->n.sym->backend_decl
         = gfc_create_var (gfc_get_int_type (st->n.sym->ts.kind),
                           st->n.sym->name);
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