2009-12-02 Tristan Gingold <gingold@adacore.com>

	* symfile.h (symbol_file_add_separate): New prototype.
	(find_separate_debug_file_by_buildid): Ditto.
	(find_separate_debug_file_by_debuglink): Ditto.
	* symfile.c (reread_separate_symbols): Remove.
	(find_separate_debug_file): Split into ...
	(find_separate_debug_file_by_buildid): ... this and ...
	(find_separate_debug_file_by_debuglink): ... this.
	(symbol_file_add_with_addrs_or_offsets): Do not save orig_addrs.
	Remove separate debug file handling.
	(symbol_file_add_separate): New function.
	(reread_symbols): Do not considere separate debug files, but free
	them while handling their parent.  Reindent.
	* coffread.c (coff_symfile_read): Handle separate object file.
	* elfread.c (elf_symfile_read): Ditto.