* c-decl.c (pop_scope): Do not set DECL_CONTEXT on file-scope

	* c-decl.c (pop_scope): Do not set DECL_CONTEXT on file-scope
	decls when there is only one input translation unit.
	* langhooks.c (lhd_set_decl_assembler_name): Partially revert
	change of 2004-07-05; do not treat declarations with
	DECL_CONTEXT a TRANSLATION_UNIT_DECL specially.
	* opts.c (cur_in_fname): Delete.
	* opts.h: Likewise.
	* tree.c: Revert changes of 2004-07-05; no special treatment
	for TRANSLATION_UNIT_DECLs.
	* Makefile.in (tree.o): Update dependencies.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84306 138bc75d-0d04-0410-961f-82ee72b054a4