2010-05-19  Shujing Zhao  <pearly.zhao@oracle.com>
	
	PR c++/18249
	* parser.c (non_integral_constant): New enum.
	(name_lookup_error): New enum.
	(cp_parser_error): Use gmsgid as parameter.
	(cp_parser_name_lookup_error): Change the type of variable desired to
	name_lookup_error and put the diagnostic in the full sentences. Change
	caller.
	(cp_parser_non_integral_constant_expression): Change the type of the
	variable thing to non_integral_constant and put the diagnostics in
	full sentences. Change caller.
	(cp_parser_require): Put the diagnostics in full sentence. Change
	caller.
	(cp_parser_require_keyword): Likewise.