re PR c++/70639 (internal compiler error: in guard_tinfo_to_string, at c-family/c-indentation.c:560)

	PR c++/70639
	* c-indentation.c (should_warn_for_misleading_indentation): Bail out
	for switch statements, too.

	* c-c++-common/Wmisleading-indentation-4.c: New test.

From-SVN: r234952