re PR c++/35650 (Can't bind ref-to-function through using-decl. in namespace)

	PR c++/35650
	* parser.c (cp_parser_lookup_name): Look through single function
	OVERLOAD.

	* g++.dg/init/ref17.C: New test.

From-SVN: r134788

gcc/cp/ChangeLog

 2008-04-29  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/35650
+	* parser.c (cp_parser_lookup_name): Look through single function
+	OVERLOAD.
+
 	PR c++/35987
 	* typeck.c (cp_build_modify_expr) <case PREINCREMENT_EXPR>: Don't build
 	COMPOUND_EXPR if the second argument would be error_mark_node.

gcc/cp/parser.c

@@ -16447,6 +16447,13 @@ cp_parser_lookup_name (cp_parser *parser, tree name,
 	  decl = lookup_qualified_name (parser->scope, name,
 					tag_type != none_type,
 					/*complain=*/true);
+
+	  /* If we have a single function from a using decl, pull it out.  */
+	  if (decl
+	      && TREE_CODE (decl) == OVERLOAD
+	      && !really_overloaded_fn (decl))
+	    decl = OVL_FUNCTION (decl);
+
 	  if (pushed_scope)
 	    pop_scope (pushed_scope);
 	}

gcc/testsuite/ChangeLog

 2008-04-29  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/35650
+	* g++.dg/init/ref17.C: New test.
+
 	PR c++/35987
 	* g++.dg/other/error28.C: New test.
 

gcc/testsuite/g++.dg/init/ref17.C

+// PR c++/35650
+// { dg-do compile }
+
+void f1 ();
+
+namespace N
+{
+  using::f1;
+  void f2 ();
+  void f3 ();
+}
+
+using N::f3;
+
+void
+test ()
+{
+  void (&a) () = f1;
+  void (&b) () = N::f1;
+  void (&c) () = N::f2;
+  void (&d) () = f3;
+  void (&e) () = ::f3;
+}