Swap the order of arguments to expectEqual in Hashing test

So that we print "expected" and "actual" on the correct values if it
fails.
diff --git a/validation-test/stdlib/Hashing.swift b/validation-test/stdlib/Hashing.swift
index 13cf05b..bd24cfb 100644
--- a/validation-test/stdlib/Hashing.swift
+++ b/validation-test/stdlib/Hashing.swift
@@ -87,7 +87,7 @@
         results[v] = Void()
       }
     }
-    expectEqual(results.count, r.endIndex - r.startIndex)
+    expectEqual(r.endIndex - r.startIndex, results.count)
   }
   checkRange(Int.min..<(Int.min+10))
   checkRange(0..<4)
@@ -119,7 +119,7 @@
         results[v] = Void()
       }
     }
-    expectEqual(results.count, Int(cardinality))
+    expectEqual(Int(cardinality), results.count)
   }
   checkRange(0..<4)
   checkRange(0..<8)