re PR c++/46852 (ICE: tree check: expected class ‘type’, have ‘exceptional’…

re PR c++/46852 (ICE: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in cp_parser_class_specifier, at cp/parser.c:16947)

gcc/cp/
	PR c++/46852
	* parser.c (cp_parser_class_specifier): Check for TYPE_P.

gcc/testsuite/
	PR c++/46852
	* g++.dg/pr46852.C: New test.

From-SVN: r167894

gcc/cp/ChangeLog

+2010-12-15  Nathan Froyd  <froydnj@codesourcery.com>
+
+	PR c++/46852
+	* parser.c (cp_parser_class_specifier): Check for TYPE_P.
+
 2010-12-15  Jakub Jelinek  <jakub@redhat.com>
 
 	PR debug/46815

gcc/cp/parser.c

@@ -16937,7 +16937,9 @@ cp_parser_class_specifier (cp_parser* parser)
 	break;
       }
 
-    if (want_semicolon)
+    /* If we don't have a type, then something is very wrong and we
+       shouldn't try to do anything clever.  */
+    if (TYPE_P (type) && want_semicolon)
       {
 	cp_token_position prev
 	  = cp_lexer_previous_token_position (parser->lexer);

gcc/testsuite/ChangeLog

+2010-12-15  Nathan Froyd  <froydnj@codesourcery.com>
+
+	PR c++/46852
+	* g++.dg/pr46852.C: New test.
+
 2010-12-16  Jan Hubicka  <jh@suse.cz>
 
 	PR middle-end/46939

gcc/testsuite/g++.dg/pr46852.C

+// PR c++/46852
+// { dg-do compile }
+
+template
+<
+class
+{				// { dg-error "" }