PR middle-end/78703 - -fprintf-return-value floating point handling incorrect...

PR middle-end/78703 - -fprintf-return-value floating point handling incorrect...

PR middle-end/78703 - -fprintf-return-value floating point handling incorrect in locales with a mulltibyte decimal point
	* gimple-ssa-sprintf.c (struct format_result): Remove constant member.
	(struct fmtresult, format_integer, format_floating): Adjust.
	(get_string_length, format_string,format_directive): Same.
	(pass_sprintf_length::compute_format_length): Same.
	(try_substitute_return_value): Simplify slightly.

From-SVN: r244846