re PR c/69627 (Conditional jump or move depends on uninitialised value(s) in (anonymous namespace)::layout::get_state_at_point)

	PR c/69627
	* diagnostic-show-locus.c (layout::get_state_at_point): Don't read
	range->m_caret fields if range->m_show_caret_p is false.

	* gcc.dg/pr69627.c: New test.

From-SVN: r233114