* exp_pakd.adb (Create_Packed_Array_Type): Always use a modular type
if the size is small enough. Propagate the alignment if there is an
alignment clause on the original array type.
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Modular_Integer_Subtype>
Deal with under-aligned packed array types. Copy the size onto the
justified modular type and don't lay it out again. Likewise for the
padding type built for other under-aligned subtypes.
* gcc-interface/utils.c (finish_record_type): Do not set a default mode
on the type.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158056 138bc75d-0d04-0410-961f-82ee72b054a4