dwarf2out.c (concat_loc_descriptor): Add can_use_fbreg argument, pass it down to...

dwarf2out.c (concat_loc_descriptor): Add can_use_fbreg argument, pass it down to loc_descriptor.

	* dwarf2out.c (concat_loc_descriptor): Add can_use_fbreg argument,
	pass it down to loc_descriptor.
	(loc_descriptor): Pass can_use_fbreg to concat_loc_descriptor.
	(containing_function_has_frame_base): Move earlier in the file.
	(loc_descriptor_from_tree_1): Use containing_function_has_frame_base
	instead of always assuming fbreg can't be used.

From-SVN: r103003