gcc/ChangeLog:
	* input.c (get_source_range_for_char): Rename to...
	(selftest::get_source_range_for_char): ...this, and move within
	the #if CHECKING_P guard.
	(get_num_source_ranges_for_substring): Rename to...
	(selftest::get_num_source_ranges_for_substring): ...this, move
	within the #if CHECKING_P guard, and make static.
	(selftest::assert_num_substring_ranges): Initialize
	actual_num_ranges.

From-SVN: r239550