don't fail on converting type objects to Num or Int; I couldn't make …

…it emit a warning, but I think just returning 0 is still more correct than a hard failure

src/cheats/parrot/Protoobject.pir

@@ -108,18 +108,12 @@ Return a clone of the protoobject with a new WHENCE property set.
 
 .namespace ['P6protoobject']
 .sub '' :vtable('get_integer') :method
-    .const 'Sub' $P1 = '!FAIL'
-    $P0 = $P1('Use of type object as value in integer context')
-    $I0 = $P0
-    .return ($I0)
+    .return (0)
 .end
 
 .namespace ['P6protoobject']
 .sub '' :vtable('get_number') :method
-    .const 'Sub' $P1 = '!FAIL'
-    $P0 = $P1('Use of type object as value in numeric context')
-    $N0 = $P0
-    .return ($N0)
+    .return (0.0)
 .end
 
 # Local Variables: