https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55227
--- Comment #9 from Will Wray <wjwray at gmail dot com> ---
Adding a reshape_iter, and checking has_designator_problem,
for a brace-enclosed string-literal fixes this secondary issue
+ reshape_iter e {CONSTRUCTOR_ELT (stripped_a_init, 0), e.cur + 1};
+ if (has_designator_problem (&e, complain))
+ return error_mark_node;
(this breaks J.R.Heisey's workaround, correctly rejecting it as an error).
