* module/language/c99/compiler.mes (int->bv): New function.
(init->data): Use it. Add parameter. Update callers.
(array-init->data): Add type parmeter.
(array-init-element->data): Likewise.
* module/mes/bytevectors.mes (bytevector-u8-set!): New function.
* module/mes/bytevectors.scm (mes): Export it.
* module/mes/as.mes (int->bv8): New function.
* module/language/c99/compiler.mes (global->info): Anonymous string
array.
(local->info): Likewise.
(array-init->string): Support array of char.
(init-local): Likewise.
(->size): Fix for array.
* scaffold/tests/4a-char-array.c: Test it.
* build-aux/check-mescc.sh (tests): Run it.