re PR c++/47336 ([C++0x] ICE: "Error reporting routines re-entered")

	PR c++/47336
	* error.c (dump_template_bindings): Suppress access control.

From-SVN: r174072

gcc/cp/ChangeLog

 2011-05-23  Jason Merrill  <jason@redhat.com>
 
+	PR c++/47336
+	* error.c (dump_template_bindings): Suppress access control.
+
 	PR c++/47544
 	* pt.c (instantiate_decl): Handle =default.
 

gcc/cp/error.c

@@ -313,7 +313,9 @@ dump_template_bindings (tree parms, tree args, VEC(tree,gc)* typenames)
       pp_cxx_whitespace (cxx_pp);
       pp_equal (cxx_pp);
       pp_cxx_whitespace (cxx_pp);
+      push_deferring_access_checks (dk_no_check);
       t = tsubst (t, args, tf_none, NULL_TREE);
+      pop_deferring_access_checks ();
       /* Strip typedefs.  We can't just use TFF_CHASE_TYPEDEF because
 	 pp_simple_type_specifier doesn't know about it.  */
       t = strip_typedefs (t);

gcc/testsuite/ChangeLog

 2011-05-23  Jason Merrill  <jason@redhat.com>
 
+	* g++.dg/cpp0x/error3.C: New.
+
 	* g++.dg/cpp0x/defaulted27.C: New.
 
 	* g++.dg/cpp0x/decltype27.C: New.

gcc/testsuite/g++.dg/cpp0x/error3.C

+// PR c++/47336
+// { dg-options -std=c++0x }
+
+template <typename T>
+void g(T t)
+{
+  t+1;				// { dg-error "no match" }
+}
+
+template <typename S>
+class C
+{
+  struct D {} d;
+public:
+  decltype(g(d)) h()
+  {
+    return g(d);
+  }
+};
+
+int main()
+{
+  C<int>().h();
+}