2011-06-17  Pierre Vittet  <piervit@pvittet.com>

	* c-pragma.h (pragma_handler_1arg, pragma_handler_2arg): New handler.
	(gen_pragma_handler): New union.
	(internal_pragma_handler): New type.
	(c_register_pragma_with_data,
	c_register_pragma_with_expansion_and_data): New functions.
	* c-pragma.c (registered_pragmas, c_register_pragma_1,
	c_register_pragma, c_register_pragma_with_expansion,
	c_invoke_pragma_handler): Changed to work with internal_pragma_handler.
	(c_register_pragma_with_data,
	c_register_pragma_with_expansion_and_data): New functions.