Force regression-1118 to run on Haiku with max threads set to 2.

Otherwise it keeps timing out.

Author: ahwayakchih

test/full-program-tests/regression-1118/main.pony

@@ -36,6 +36,13 @@ actor Main
   fun @runtime_override_defaults(rto: RuntimeOptions) =>
      rto.ponynoblock = true
 
+     // Skip on Haiku: keeps timing out in QEmu with 4 cores enabled.
+     // It runs fine in QEmu with just 2 cores enabled or without time limit.
+     // It runs in ~35s on 2 cores and ~60s on 4 cores.
+     ifdef haiku then
+       rto.ponymaxthreads = 2
+     end
+
 actor Test
   var c: U64 = 0