Migrate language/arithmetic2_test ... language/async_await_syntax_test.

tests/language_strong/arithmetic2_test.dart

-// Copyright (c) 2012, 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.
-
-import "package:expect/expect.dart";
-
-class A {
-  static foo() => 499;
-}
-
-bool throwsNoSuchMethod(f) {
-  try {
-    f();
-    return false;
-  } on NoSuchMethodError catch (e) {
-    return true;
-  }
-  return false;
-}
-
-bool throwsBecauseOfBadArgument(f) {
-  try {
-    f();
-    return false;
-  } on NoSuchMethodError catch (e) {
-    return true;
-  } on ArgumentError catch (e) {
-    return true;
-  } on TypeError catch (e) {
-    // In type checked mode.
-    return true;
-  }
-  return false;
-}
-
-numberOpBadSecondArgument(f) {
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f(true)));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f(new A())));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f("foo")));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f("5")));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f(() => 499)));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f(null)));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f(false)));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f([])));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f({})));
-  Expect.isTrue(throwsBecauseOfBadArgument(() => f(A.foo)));
-}
-
-badOperations(b) {
-  Expect.isTrue(throwsNoSuchMethod(() => b - 3));
-  Expect.isTrue(throwsNoSuchMethod(() => b * 3));
-  Expect.isTrue(throwsNoSuchMethod(() => b ~/ 3));
-  Expect.isTrue(throwsNoSuchMethod(() => b / 3));
-  Expect.isTrue(throwsNoSuchMethod(() => b % 3));
-  Expect.isTrue(throwsNoSuchMethod(() => b + 3));
-  Expect.isTrue(throwsNoSuchMethod(() => b[3]));
-  Expect.isTrue(throwsNoSuchMethod(() => ~b));
-  Expect.isTrue(throwsNoSuchMethod(() => -b));
-}
-
-main() {
-  numberOpBadSecondArgument((x) => 3 + x);
-  numberOpBadSecondArgument((x) => 3 - x);
-  numberOpBadSecondArgument((x) => 3 * x);
-  numberOpBadSecondArgument((x) => 3 / x);
-  numberOpBadSecondArgument((x) => 3 ~/ x);
-  numberOpBadSecondArgument((x) => 3 % x);
-  badOperations(true);
-  badOperations(false);
-  badOperations(() => 499);
-  badOperations(A.foo);
-}