re PR c++/52915 ([C++11] Deleted default-constructor of anonymous unions not honored)

	PR c++/52915
	* decl2.c (finish_anon_union): Use cp_finish_decl.
	* error.c (dump_function_name): Avoid showing anonymous "name".

From-SVN: r186432

gcc/cp/ChangeLog

+2012-04-13  Jason Merrill  <jason@redhat.com>
+
+	PR c++/52915
+	* decl2.c (finish_anon_union): Use cp_finish_decl.
+	* error.c (dump_function_name): Avoid showing anonymous "name".
+
 2012-04-11  Fabien Chêne  <fabien@gcc.gnu.org>
 
 	PR c++/52465

gcc/cp/decl2.c

@@ -1456,12 +1456,7 @@ finish_anon_union (tree anon_union_decl)
     }
 
   pushdecl (anon_union_decl);
-  if (building_stmt_list_p ()
-      && at_function_scope_p ())
-    add_decl_expr (anon_union_decl);
-  else if (!processing_template_decl)
-    rest_of_decl_compilation (anon_union_decl,
-			      toplevel_bindings_p (), at_eof);
+  cp_finish_decl (anon_union_decl, NULL_TREE, false, NULL_TREE, 0);
 }
 
 /* Auxiliary functions to make type signatures for

gcc/cp/error.c

@@ -1556,6 +1556,8 @@ dump_function_name (tree t, int flags)
     {
       if (LAMBDA_TYPE_P (DECL_CONTEXT (t)))
 	name = get_identifier ("<lambda>");
+      else if (TYPE_ANONYMOUS_P (DECL_CONTEXT (t)))
+	name = get_identifier ("<constructor>");
       else
 	name = constructor_name (DECL_CONTEXT (t));
     }

gcc/testsuite/ChangeLog

+2012-04-13  Jason Merrill  <jason@redhat.com>
+
+	PR c++/52915
+	* g++.dg/other/anon-union2.C: New.
+
 2012-04-13  Martin Jambor  <mjambor@suse.cz>
 
 	PR middle-end/52939

gcc/testsuite/g++.dg/other/anon-union2.C

+// PR c++/52915
+
+struct S {
+  int val;
+  S(int v) : val(v) {}
+};
+
+void f() {
+  union { S a; };		// { dg-error "constructor|no match" }
+}