self-genocide's "you feel dead inside"

It seems to me that the reaction to "you feel dead inside" when you're
polymorphed into an undead creature at the time would be "so what else
is new?".  Vary the "dead" when current form is something which gets
reported as "destroyed" rather than "killed" when killed.  That happens
for things flagged as non-living.  Now undead "feel condemned inside"
and golems "feel empty inside".  Neither of those are ideal but they're
more interesting than "feel dead inside".

After becoming dead inside, give a reminder about that during
enlightenment and if you restore a saved game in that condition.  It
was the latter that set this in motion:  I wanted to confirm that
restoring with u.uhp == -1 didn't give "you aren't healthy enough to
survive restoration" when polymorphed.  (It doesn't; the game resumes
and you'll die if/when you rehumanize.)

src/allmain.c

@@ -1,4 +1,4 @@
-/* NetHack 3.6	allmain.c	$NHDT-Date: 1463217182 2016/05/14 09:13:02 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.72 $ */
+/* NetHack 3.6	allmain.c	$NHDT-Date: 1513130016 2017/12/13 01:53:36 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.81 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /* NetHack may be freely redistributed.  See license for details. */
 
@@ -640,6 +640,13 @@ boolean new_game; /* false => restoring an old game */
     char buf[BUFSZ];
     boolean currentgend = Upolyd ? u.mfemale : flags.female;
 
+    /* skip "welcome back" if restoring a doomed character */
+    if (!new_game && Upolyd && ugenocided()) {
+        /* death via self-genocide is pending */
+        pline("You're back, but you still feel %s inside.", udeadinside());
+        return;
+    }
+
     /*
      * The "welcome back" message always describes your innate form
      * even when polymorphed or wearing a helm of opposite alignment.