[Bug c/57821] 'array is too large' error is missing when sizetype overflows

[amylaar at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57821

--- Comment #1 from Jorn Wolfgang Rennecke <amylaar at gcc dot gnu.org> ---
avr faces an additional issue in c/c-typeck:set_init_index, where the
designator value is converted to bitsizetype; that is 24 bit PSImode for
avr.