dwarf2out.c (size_of_loc_descr, [...]): Allow DW_OP_GNU_convert and DW_OP_GNU_reinter...

dwarf2out.c (size_of_loc_descr, [...]): Allow DW_OP_GNU_convert and DW_OP_GNU_reinterpret to use constant instead of...

	* dwarf2out.c (size_of_loc_descr, output_loc_operands,
	mark_base_types, hash_loc_operands, compare_loc_operands): Allow
	DW_OP_GNU_convert and DW_OP_GNU_reinterpret to use constant instead
	of base type reference as argument.
	(resolve_addr_in_expr): Likewise.  Fix keep computation.
	(convert_descriptor_to_signed): Renamed to...
	(convert_descriptor_to_mode): ... this.  For wider types convert
	to unsigned instead of signed, for <= DWARF2_ADDR_SIZE convert to
	untyped.
	(typed_binop): New function.
	(scompare_loc_descriptor, ucompare_loc_descriptor,
	minmax_loc_descriptor, mem_loc_descriptor): For wider integer modes
	default to unsigned type instead of signed.

From-SVN: r175289