c-decl.c (check_bitfield_type_and_width): Do not pass NULL to build_int_cst.

2011-05-04  Richard Guenther  <rguenther@suse.de>

	* c-decl.c (check_bitfield_type_and_width): Do not pass NULL
	to build_int_cst.
	* c-typeck.c (really_start_incremental_init): Use bitsize_int
	for constructor indices.
	(push_init_level): Likewise.

	c-family/
	* c-common.c (fix_string_type): Use size_int for index type bounds.
	(start_fname_decls): Do not pass NULL to build_int_cst.
	(c_init_attributes): Likewise.
	* c-lex.c (c_lex_with_flags): Likewise.

From-SVN: r173378