Use even smaller numbers for tests

Author: jiribenes

examples/stdlib/stream/fastexp.check

@@ -38,9 +38,15 @@
 0 ^ 0
 1
 1
-7 ^ 21
-558545864083284030
-558545864083284030
-21 ^ 7
-1801088541
-1801088541
+200 ^ 2
+40000
+40000
+128 ^ 4
+268435456
+268435456
+7 ^ 13
+96889010407
+96889010407
+13 ^ 7
+62748517
+62748517

examples/stdlib/stream/fastexp.effekt

@@ -74,6 +74,8 @@ def main() = {
   testExp(0, 1)
   testExp(1, 0)
   testExp(0, 0)
-  testExp(7, 21)
-  testExp(21, 7)
+  testExp(200, 2)
+  testExp(128, 4)
+  testExp(7, 13)
+  testExp(13, 7)
 }