trans-intrinsic.c (conv_intrinsic_ieee_is_negative): Use type generic BUILT_IN_SIGNBIT.

trans-intrinsic.c (conv_intrinsic_ieee_is_negative): Use type generic BUILT_IN_SIGNBIT.

	* trans-intrinsic.c (conv_intrinsic_ieee_is_negative): Use type
	generic BUILT_IN_SIGNBIT.
	(conv_intrinsic_ieee_copy_sign): Likewise.
	* f95-lang.c (gfc_init_builtin_functions): Add BUILT_IN_ISINF,
	BUILT_IN_ISINF_SIGN, BUILT_IN_SIGNBIT, BUILT_IN_ISLESS,
	BUILT_IN_ISLESSGREATER, BUILT_IN_ISGREATER. Remove non-type generic
	variants of BUILT_IN_SIGNBIT.
	* mathbuiltins.def: Remove SIGNBIT.

From-SVN: r226924