gdb

gdb
	PR c++/8693, PR c++/9496:
	* cp-namespace.c (cp_lookup_nested_type): Handle TYPE_CODE_UNION.
	* c-exp.y (lex_one_token): Rename from yylex.  Don't call
	write_dollar_variable.  Don't try to classify NAME tokens.
	(token_and_value): New type.
	(token_fifo, popping, name_obstack): New globals.
	(classify_name): New function.
	(classify_inner_name): Likewise.
	(yylex): Likewise.
	(VARIABLE): Now has type sval.
	(exp : VARIABLE): Call write_dollar_variable.
	(qualified_name): Use TYPENAME, not typebase.  Add production for
	multiple "::" instances.
	(variable): Use name_not_typename.
	(qualified_type): Remove.
	(typebase): Update.
gdb/testsuite
	PR c++/8693, PR c++/9496:
	* gdb.cp/namespace.exp: Remove some setup_kfail calls.  Added
	regression tests.