re PR c++/65333 (error: incomplete type used in nested name specifier)

	PR c++/65333
	DR 1558
	* pt.c (dependent_type_p_r): Check both class and alias template args.

From-SVN: r221328

gcc/cp/ChangeLog

+2015-03-10  Jason Merrill  <jason@redhat.com>
+
+	PR c++/65333
+	DR 1558
+	* pt.c (dependent_type_p_r): Check both class and alias template args.
+
 2015-03-10  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/65120

gcc/cp/pt.c

@@ -20930,7 +20930,13 @@ dependent_type_p_r (tree type)
     return true;
   /* ... or any of the template arguments is a dependent type or
 	an expression that is type-dependent or value-dependent.  */
-  else if (TYPE_TEMPLATE_INFO (type)
+  else if (CLASS_TYPE_P (type) && CLASSTYPE_TEMPLATE_INFO (type)
+	   && (any_dependent_template_arguments_p
+	       (INNERMOST_TEMPLATE_ARGS (CLASSTYPE_TI_ARGS (type)))))
+    return true;
+  /* For an alias template specialization, check the arguments both to the
+     class template and the alias template.  */
+  else if (alias_template_specialization_p (type)
 	   && (any_dependent_template_arguments_p
 	       (INNERMOST_TEMPLATE_ARGS (TYPE_TI_ARGS (type)))))
     return true;

gcc/testsuite/g++.dg/cpp0x/alias-decl-47.C

+// PR c++/65333
+// { dg-do compile { target c++11 } }
+
+template <typename T, T... Values> struct A
+{
+  using type = int;
+  template <type... Suffix> using array = A<type, Values..., Suffix...>;
+  void
+  m_fn1 ()
+  {
+    array<>::data;
+  }
+};