exp_dbug.ads (Packed Array Encoding): Document the new encoding for the unconstrained case.
* exp_dbug.ads (Packed Array Encoding): Document the new encoding for
the unconstrained case.
* gcc-interfaces/decl.c (gnat_to_gnu_entity) <E_Array_Type>: Implement
the encoding. Do not give a name to the pointer type to the XUT type.
* gcc-interfaces/utils.c (gnat_pushdecl): Propagate DECL_ORIGINAL_TYPE
for fat pointer types, if any. Make sure DECL_ARTIFICIAL is cleared
on nodes with DECL_ORIGINAL_TYPE set.
(update_pointer_to): Set DECL_ORIGINAL_TYPE to the original pointer
for fat pointer types. Make sure DECL_ARTIFICIAL is cleared.