* expr.c (expand_expr): Use unsave lang hook.
* langhooks-def.h (LANG_HOOKS_UNSAVE): New.
(LANG_HOOKS_INITIALIZER): Update.
* langhooks.h (struct lang_hooks): New hook unsave.
* tree.c (lang_unsave, lang_unsave_expr_now): Remove.
(unsave_expr_1): Remove unused lang_unsave_expr_now.
(unsave_expr_now_r): Rename lhd_unsave. Update. Return input.
(unsave_expr_now): Remove.
* tree.h (unsave_expr_now, lang_unsave,
lang_unsave_expr_now): Remove.
(lhd_unsave): New.
cp:
* cp-lang.c (LANG_HOOKS_UNSAVE): Redefine.
* cp-tree.h (cxx_unsave): New.
* tree.c (cp_unsave): Rename cxx_unsave, update prototype.
(init_tree): Update.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50449
138bc75d-0d04-0410-961f-
82ee72b054a4