PR c/68187: fix overzealous -Wmisleading-indentation (comment #0)

PR c/68187: fix overzealous -Wmisleading-indentation (comment #0)

gcc/c-family/ChangeLog:
	PR c/68187
	* c-indentation.c (should_warn_for_misleading_indentation): When
	suppressing warnings about cases where the guard and body are on
	the same column, only use the first non-whitespace column in place
	of the guard token column when dealing with "else" clauses.
	When rejecting aligned BODY and NEXT, loosen the requirement
	from equality with the first non-whitespace of guard to simply
	that they not be indented relative to it.

gcc/testsuite/ChangeLog:
	PR c/68187
	* c-c++-common/Wmisleading-indentation.c (fn_40_a): New test
	function.
	(fn_40_b): Likewise.
	(fn_41_a): Likewise.
	(fn_41_b): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233971 138bc75d-0d04-0410-961f-82ee72b054a4