PR c++/18731
	* parser.c (cp_parser_class_head): Reject typedef-name in class head.

	* g++.dg/parser/struct-1.C: New test.
	* g++.dg/parser/struct-2.C: New test.
	* g++.dg/parser/struct-3.C: New test.

From-SVN: r91993