Bug in 19980806 and 19980814 snapshots

[Jeffrey A Law]

  In message <98Sep15.164548edt.19993@mailgate2.org.com>you write:
  > I get a compile error building these snapshots for rs6000 targets.
  > gcc/objc/encoding.c line 801 uses the ADJUST_ALIGN_FIELD macro which
  > references TYPE_MODE, TREE_TYPE and ARRAY_TYPE.  It seems that this was
  > broken as a result of the change by <ovidiu@aracnet.com> for correctly
  > computing the size of compound types in the presence of bitfields.
This should be fixed in the current sources.
jeff