gcc/c-family/
	PR c++/16189
	PR c++/36888
	PR c++/45331
	* c-common.h (keyword_begins_type_specifier): Declare.
	(keyword_is_storage_class_specifier): Declare.
	(keyword_is_type_qualifier): Declare.
	* c-common.c (keyword_begins_type_specifier): New function.
	(keyword_is_storage_class_specifier): New function.
	(keyword_is_type_qualifier): Declare.

gcc/cp/
	PR c++/16189
	PR c++/36888
	PR c++/45331
	* parser.c (cp_lexer_set_token_position): New function.
	(cp_lexer_previous_token_position): New function.
	(cp_lexer_previous_token): Call it.
	(cp_parser_class_specifier): Try to gracefully handle a missing
	semicolon.

gcc/testsuite/
	PR c++/16189
	PR c++/36888
	PR c++/45331
	* g++.dg/parse/semicolon3.C: New test.
	* g++.dg/debug/pr22514.C: Adjust.
	* g++.dg/init/error1.C: Adjust.
	* g++.dg/other/bitfield3.C: Adjust.
	* g++.dg/other/semicolon.C: Adjust.
	* g++.dg/parse/error14.C: Adjust.
	* g++.dg/parse/error5.C: Adjust.
	* g++.dg/parse/parameter-declaration-1.C: Adjust.
	* g++.dg/template/pr23510.C: Adjust.
	* g++.dg/template/pr39425.C: Adjust.
	* g++.old-deja/g++.robertl/eb125.C: Adjust.

From-SVN: r166977