* dwarf2loc.h (dwarf2_per_cu_text_offset): Declare.

	* dwarf2loc.h (dwarf2_per_cu_text_offset): Declare.
	* dwarf2loc.c (find_location_expression): Use
	dwarf2_per_cu_text_offset.
	(dwarf2_evaluate_loc_desc): Likewise.
	(dwarf2_loc_desc_needs_frame): Likewise.
	(compile_dwarf_to_ax): Likewise.
	(loclist_describe_location): Likewise.
	* dwarf2read.c (dwarf2_per_cu_text_offset): New function.
	(dwarf2_per_cu_objfile): Update comment.