* gcc.dg/format/format.h: New file.
	* gcc.dg/format/array-1.c, gcc.dg/format/attr-1.c,
	gcc.dg/format/branch-1.c, gcc.dg/format/c90-printf-1.c,
	gcc.dg/format/c90-printf-2.c, gcc.dg/format/c90-printf-3.c,
	gcc.dg/format/c90-scanf-1.c, gcc.dg/format/c90-scanf-2.c,
	gcc.dg/format/c90-scanf-3.c, gcc.dg/format/c90-scanf-4.c,
	gcc.dg/format/c90-strftime-1.c, gcc.dg/format/c90-strftime-2.c,
	gcc.dg/format/c94-printf-1.c, gcc.dg/format/c94-scanf-1.c,
	gcc.dg/format/c99-printf-1.c, gcc.dg/format/c99-printf-2.c,
	gcc.dg/format/c99-printf-3.c, gcc.dg/format/c99-scanf-1.c,
	gcc.dg/format/c99-scanf-2.c, gcc.dg/format/c99-scanf-3.c,
	gcc.dg/format/c99-strftime-1.c, gcc.dg/format/c99-strftime-2.c,
	gcc.dg/format/diag-1.c, gcc.dg/format/errmk-1.c,
	gcc.dg/format/ext-1.c, gcc.dg/format/ext-2.c,
	gcc.dg/format/ext-3.c, gcc.dg/format/ext-4.c,
	gcc.dg/format/ext-5.c, gcc.dg/format/miss-1.c,
	gcc.dg/format/miss-2.c, gcc.dg/format/no-exargs-1.c,
	gcc.dg/format/no-y2k-1.c, gcc.dg/format/nonlit-1.c,
	gcc.dg/format/nonlit-2.c, gcc.dg/format/nonlit-3.c,
	gcc.dg/format/sec-1.c, gcc.dg/format/strfmon-1.c,
	gcc.dg/format/va-1.c, gcc.dg/format/warnll-1.c,
	gcc.dg/format/xopen-1.c, gcc.dg/format/z-1.c: Include "format.h"
	instead of declaring standard types, macros and functions in each
	test.

From-SVN: r38767