+2012-08-01 Dmitry Antipov <dmantipov@yandex.ru>
+
+ Use INTERNAL_FIELD for conses and overlays.
+ * lisp.h (struct Lisp_Cons): Use INTERNAL_FIELD.
+ Remove obsolete comment.
+ (MVAR): New macro.
+ (struct Lisp_Overlay): Use INTERNAL_FIELD.
+ * alloc.c, buffer.c, buffer.h, fns.c: Adjust users.
+
2012-08-01 Dmitry Antipov <dmantipov@yandex.ru>
Use INTERNAL_FIELD for symbols.