eating gold in front of the vault guard (trunk only)

<email deleted> wrote:
> Eating gold in a vault (or polymorphing a pile of gold into 1 gold piece)
> doesn't anger the guard.

This addresses the eating part of that report, but the hero
has to get caught doing it.

include/extern.h

@@ -2236,6 +2236,7 @@ E int FDECL(gd_move, (struct monst *));
 E void NDECL(paygd);
 E long NDECL(hidden_gold);
 E boolean NDECL(gd_sound);
+E void FDECL(vault_gd_watching, (unsigned int));
 
 /* ### version.c ### */
 

include/mextra.h

@@ -62,6 +62,8 @@
  **	formerly vault.h -- vault guard extension
  */
 #define FCSIZ	(ROWNO+COLNO)
+#define GD_EATGOLD	0x01
+#define GD_DESTROYGOLD	0x02
 
 struct fakecorridor {
 	xchar fx, fy, ftyp;
@@ -75,7 +77,8 @@ struct egd {
 	d_level gdlevel;	/* level (& dungeon) guard was created in */
 	xchar warncnt;		/* number of warnings to follow */
 	Bitfield(gddone,1);	/* true iff guard has released player */
-	Bitfield(unused,7);
+	Bitfield(witness,2);	/* the guard saw you do something */
+	Bitfield(unused,5);
 	struct fakecorridor fakecorr[FCSIZ];
 };