Add failing test for dart2js range-analysis.

tests/compiler/dart2js_extra/constant_javascript_semantics2_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.
+
+// Make sure we use JavaScript semantics when compiling compile-time constants.
+// In this case we test that the value-range analysis uses JavaScript semantics
+// too.
+
+int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
+
+foo() {
+  var a = const [1, 2];
+  var i = 0x100000000;
+  if (inscrutable(i) == 0) {
+    i = 0x100000001;
+  }
+  i = 0xFFFFFFFFF & i;  // In JS semantics [:i:] will be truncated to 32 bits.
+  i = 0x100000001 - i;
+  return a[i];
+}
+
+main() {
+  Expect.throws(() => foo(),
+                (e) => e is IndexOutOfRangeException);
+}