RFA: Generate normal DWARF DW_LOC descriptors for non integer mode pointers

[Nick Clifton]

Hi Jeff,

> I can buy that ;-)   OK with a suitable ChangeLog entry.

Thanks!  Checked in with this changelog entry.

Cheers
  Nick

gcc/ChangeLog
2016-06-22  Nick Clifton  <nickc@redhat.com>

	* dwarf2out.c (scompare_loc_descriptor): Use SCALAR_INT_MODE_P() in
	place of GET_MODE_CLASS() == MODE_INT, so that partial integer
	modes are accepted as well.
	(ucompare_loc_descriptor): Likewise.
	(minmax_loc_descriptor): Likewise.
	(clz_loc_descriptor): Likewise.
	(popcount_loc_descriptor): Likewise.
	(bswap_loc_descriptor): Likewise.
	(rotate_loc_descriptor): Likewise.
	(mem_loc_descriptor): Likewise.
	(loc_descriptor): Likewise.