gdb/

gdb/
	* symfile.c (reread_symbols): Move free_objfile_separate_debug,
	preserve_values, sym_finish and clear_objfile_data calls before BFD
	close.  Move free_objfile_separate_debug as the very first call.  New
	comment on the ordering.

gdb/testsuite/
	* gdb.base/reread.exp: If srcfile2 fails to build retry it with
	-DNO_SECTIONS.
	* gdb.base/reread2.c <!NO_SECTIONS>: New sections block.