bfd/

bfd/
	* libcoff-in.h (xcoff_section_tdata): Update commentary.
	* libcoff.h: Regenerate.
	* xcofflink.c (xcoff_link_add_symbols): Set the csect of XTY_ER
	symbols to bfd_und_section_ptr or bfd_abs_section_ptr, rather than
	the previous symbol's csect.  Treat last_symndx as an inclusive value
	and simplify its handling.
	(xcoff_mark): Treat last_symndx as an inclusive value.  Only mark
	symbols with the right csect.  Don't mark rsec when processing
	relocations against undefined or absolute sections.
	(bfd_xcoff_size_dynamic_sections): Don't check the SEC_MARK flag
	of bfd_und_section_ptr.
	(xcoff_link_input_bfd): Likewise.