re PR c++/50054 (Fails to recover from type error in function signature)

	PR c++/50054
	* typeck2.c (cxx_incomplete_type_diagnostic): Handle
	init_list_type_node.

From-SVN: r177810

gcc/cp/ChangeLog

+2011-08-16  Jason Merrill  <jason@redhat.com>
+
+	PR c++/50054
+	* typeck2.c (cxx_incomplete_type_diagnostic): Handle
+	init_list_type_node.
+
 2011-08-13  Jason Merrill  <jason@redhat.com>
 
 	PR c++/50075

gcc/cp/typeck2.c

@@ -450,6 +450,12 @@ cxx_incomplete_type_diagnostic (const_tree value, const_tree type,
       break;
 
     case LANG_TYPE:
+      if (type == init_list_type_node)
+	{
+	  emit_diagnostic (diag_kind, input_location, 0,
+			   "invalid use of brace-enclosed initializer list");
+	  break;
+	}
       gcc_assert (type == unknown_type_node);
       if (value && TREE_CODE (value) == COMPONENT_REF)
 	goto bad_member;

gcc/testsuite/ChangeLog

+2011-08-16  Jason Merrill  <jason@redhat.com>
+
+	PR c++/50054
+	* g++.dg/cpp0x/initlist56.C: New.
+
 2011-08-15  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR testsuite/50085

gcc/testsuite/g++.dg/cpp0x/initlist57.C

+// PR c++/50054
+// { dg-options -std=c++0x }
+
+void g( const int& (a)[1] ) {}	// { dg-error "array of references" }
+
+int main () {
+    g( { 1, 2 } );		// { dg-error "initializer list" }
+}