Add issue numbers to language tests status files

tests/language/math_vm_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.
-// Tests that the VM does not crash on weird corner cases of class Math.
-// VMOptions=--optimization_counter_threshold=100
-
-library math_vm_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-class FakeNumber {
-  const FakeNumber();
-  void toDouble() {}
-}
-
-class MathTest {
-  static bool testParseInt(x) {
-    try {
-      int.parse(x);  // Expects string.
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  static bool testSqrt(x) {
-    try {
-      sqrt(x);  // Expects number.
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  static void testMain() {
-    Expect.equals(false, testParseInt(5));
-    Expect.equals(false, testSqrt(const FakeNumber()));
-  }
-}
-
-testDoublePow() {
-  Expect.equals((1 << 32).toDouble(), pow(2.0, 32));
-}
-
-
-testSinCos(a) {
-  double sVal = sin(a);
-  double cVal = cos(a);
-  return sVal + cVal;
-}
-
-main() {
-  const double value = 1.54;
-  final firstRes = testSinCos(value);
-  for (int i = 0; i < 200; i++) {
-    MathTest.testMain();
-    testDoublePow();
-    testSinCos(value);
-  }
-  Expect.equals(firstRes, testSinCos(value));
-}