* dwarf2read.c (dwarf_info_offset, dwarf_abbrev_offset)

	* dwarf2read.c (dwarf_info_offset, dwarf_abbrev_offset)
	(dwarf_line_offset, dwarf_pubnames_offset, dwarf_aranges_offset)
	(dwarf_loc_offset, dwarf_macinfo_offset, dwarf_str_offset)
	(dwarf_ranges_offset, dwarf_frame_offset, dwarf_eh_frame_offset):
	Delete.
	(dwarf2_read_section): Remove offset and size arguments.  Use
	bfd_get_section_size_before_reloc and sectp->filepos.
	(dwarf2_has_info): Clear section variables instead of offsets.
	(dwarf2_locate_sections): Don't initialize the deleted variables.
	(dwarf2_build_psymtabs): Update calls to dwarf2_read_section.
	(dwarf2_build_psymtabs_easy): Likewise.
	* dwarf2-frame.c (dwarf_frame_offset, dwarf_frame_size)
	(dwarf_eh_frame_offset, dwarf_eh_frame_size): Remove extern
	declarations.
	(dwarf2_read_section): Update prototype.
	(dwarf2_build_frame_info): Update calls to dwarf2_read_section.
	Use bfd_get_section_size_before_reloc instead of global size
	variables.