Revert and cleanup Lisp_Cons, Lisp_Misc and Lisp_Symbol things.

* src/lisp.h (struct Lisp_Symbol): Change xname to meaningful
name since all xname users are fixed long time ago.  Do not use
INTERNAL_FIELD.
(set_symbol_name, set_symbol_function, set_symbol_plist):
(set_symbol_next, set_overlay_plist): New function.
(struct Lisp_Cons): Do not use INTERNAL_FIELD.
(struct Lisp_Overlay): Likewise.
(CVAR, MVAR, SVAR): Remove.
* src/alloc.c, src/buffer.c, src/buffer.h, src/bytecode.c:
* src/cmds.c, src/data.c, src/doc.c, src/eval.c, src/fns.c:
* src/keyboard.c, src/lread.c, src/nsselect.m, src/xterm.c:
Adjust users.
* src/.gdbinit: Change to use name field of struct Lisp_Symbol
where appropriate.
* admin/coccinelle/overlay.cocci, admin/coccinelle/symbol.cocci:
Remove.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/bytecode.c b/src/bytecode.c
index 49369de33e9..5ac8b4fa2bd 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -818,7 +818,7 @@ exec_byte_code (Lisp_Object bytestr, Lisp_Object vector, Lisp_Object maxdepth,
                 && !EQ (val, Qunbound)
                 && !XSYMBOL (sym)->redirect
                 && !SYMBOL_CONSTANT_P (sym))
-              SVAR (XSYMBOL (sym), val.value) = val;
+              SET_SYMBOL_VAL (XSYMBOL (sym), val);
             else
               {
                 BEFORE_POTENTIAL_GC ();