gdb/

gdb/
	* Makefile.in (symtab.o): Update.
	* symtab.h (matching_bfd_section): New prototype.
	* symtab.c (matching_bfd_section): New.
	(find_pc_sect_psymbol, find_pc_sect_symtab): Use it.
	* minsyms.c (lookup_minimal_symbol_by_pc_section): Likewise.
	* printcmd.c (sym_info): Ignore separate debug objfiles.
gdb/testsuite/
	* gdb.base/sepdebug.exp: Remove debug format test.
	* lib/gdb.exp (gdb_gnu_strip_debug): Perform debug format test.
	Handle no-symtab.
	* gdb.base/sepsymtab.c, gdb.base/sepsymtab.exp: New.