re PR c++/29022 (ICE using operator int in invalid class hierarchy)

re PR c++/29022 (ICE using operator int in invalid class hierarchy)

	PR c++/29022
	* parser.c (cp_parser_class_head): Move processing
	of any base classes to...
	(cp_parser_class_specifier) ...here. Take an extra
	tree* parameter for any base classes. Only process
	them if the opening brace was found.

	* g++.dg/inherit/virtual2.C: New test.
	* g++.dg/inherit/virtual3.C: Likewise.
	* g++.old-deja/g++.bugs/900121_05.C: Adjust error markers.
	* g++.dg/inherit/error2.C: Likewise.
	* g++.dg/template/instantiate1.C: Likewise.

From-SVN: r119318