fix github issue #134 - display of migrated objects

Fixes #134

An invisible hero (who can't see invisible and doesn't have autopickup
enabled) going down stairs to an object which fell down those stairs
will see the stairs instead of the object on them.  Missing newsym()
in obj_delivery() when objects aren't being passed through scatter().

doc/fixes36.2

@@ -133,6 +133,8 @@ a sleeping or paralyzed mon would be frightened by its reflection when
 prevent leash showing unseen monster as "attached to it"
 gremlins seemed impervious to Sunsword's light yet a flash from a camera
 	caused them to cry out in pain
+when objects migrate (fall down stairs) and invisible hero (w/o see invisible,
+	no-autopickup) descends, stairs get shown instead of object(s) on them
 
 
 Fixes to Post-3.6.1 Problems that Were Exposed Via git Repository

src/dokick.c

@@ -1658,6 +1658,8 @@ boolean near_hero;
             stackobj(otmp);
             if (!noscatter)
                 (void) scatter(nx, ny, rnd(2), 0, otmp);
+            else
+                newsym(nx, ny);
         } else { /* random location */
             /* set dummy coordinates because there's no
                current position for rloco() to update */

src/explode.c

@@ -657,6 +657,7 @@ struct obj *obj; /* only scatter this obj        */
                 (void) break_statue(otmp);
                 place_object(otmp, sx, sy); /* put fragments on floor */
             }
+            newsym(sx, sy); /* in case it's beyond radius of 'farthest' */
             used_up = TRUE;
 
             /* 1 in 10 chance of destruction of obj; glass, egg destruction */