Migrate the language tests up to arithmetic_test.

tests/language/arithmetic_smi_overflow_test.dart

Index: tests/language/arithmetic_smi_overflow_test.dart
diff --git a/tests/language/arithmetic_smi_overflow_test.dart b/tests/language/arithmetic_smi_overflow_test.dart
deleted file mode 100644
index 1a4eec14fda5ec3ef559630fe8a0a5a159555533..0000000000000000000000000000000000000000
--- a/tests/language/arithmetic_smi_overflow_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// VMOptions=--optimization_counter_threshold=5 --no-background_compilation
-
-import "package:expect/expect.dart";
-
-main() {
-  for (var i = 0; i < 10; i++) {
-    Expect.equals(0x40000000, (i - i) - -1073741824);
-    Expect.equals(0x4000000000000000, (i - i) - -4611686018427387904);
-  }
-}