remove pointer to long conversions - part 2 of 3 (trunk only)

Remove some more code that forced pointers into a long int, and
vice versa where information could be lost (P64 platforms such as
WIN64 have a 64 bit pointer size, but a 32 bit long size.)

This 2nd part deals with timeout functions switching
some arguments from type genericptr_t to 'anything'.

Like part 1, this needs to increment EDITLEVEL in patchlevel.h.

include/timeout.h

@@ -6,7 +6,7 @@
 #define TIMEOUT_H
 
 /* generic timeout function */
-typedef void FDECL((*timeout_proc), (genericptr_t, long));
+typedef void FDECL((*timeout_proc), (ANY_P *, long));
 
 /* kind of timer */
 #define TIMER_LEVEL	0	/* event specific to level */
@@ -38,7 +38,7 @@ typedef struct fe {
     unsigned long tid;		/* timer ID */
     short kind;			/* kind of use */
     short func_index;		/* what to call when we time out */
-    genericptr_t arg;		/* pointer to timeout argument */
+    anything arg;		/* pointer to timeout argument */
     Bitfield (needs_fixup,1);	/* does arg need to be patched? */
 } timer_element;