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