re PR c++/14810 (tree check failures with invalid code involving templates)

	PR c++/14810
	* name-lookup.c (maybe_push_cleanup_level): Robustify.

From-SVN: r80315

gcc/cp/ChangeLog

+2004-04-01  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/14810
+	* name-lookup.c (maybe_push_cleanup_level): Robustify.
+
 2004-04-01  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
 	* class.c (VTT_TOP_LEVEL_P): Use unsigned_flag directly.

gcc/cp/name-lookup.c

@@ -1407,7 +1407,8 @@ innermost_nonclass_level (void)
 void
 maybe_push_cleanup_level (tree type)
 {
-  if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (type)
+  if (type != error_mark_node
+      && TYPE_HAS_NONTRIVIAL_DESTRUCTOR (type)
       && current_binding_level->more_cleanups_ok == 0)
     {
       begin_scope (sk_cleanup, NULL);