FIx issue 261: throw exception if index if idnexed oeprators if lists Array and GrowableArray is ...

tests/corelib/src/IndexedListAccessTest.dart

Index: tests/corelib/src/IndexedListAccessTest.dart
===================================================================
--- tests/corelib/src/IndexedListAccessTest.dart	(revision 0)
+++ tests/corelib/src/IndexedListAccessTest.dart	(revision 0)
@@ -0,0 +1,49 @@
+// Copyright (c) 2011, 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.
+
+// Check that indexed access to lists throws correct exception if index
+// is not int.
+
+main() {
+  checkList(new List(10));
+  var growable = new List();
+  growable.add(1);
+  growable.add(1);
+  checkList(growable);
+}
+
+
+checkList(var list) {
+  // Check unoptimized.
+  Expect.isFalse(checkCatch(getIt, list, 1));
+  Expect.isTrue(checkCatch(getIt, list, "hi"));
+  Expect.isFalse(checkCatch(putIt, list, 1));
+  Expect.isTrue(checkCatch(putIt, list, "hi"));
+  // Optimize 'getIt' and 'putIt'.
+  for (int i = 0; i < 2000; i++) {
+     putIt(list, 1);
+     getIt(list, 1);
+  }
+  Expect.isTrue(checkCatch(getIt, list, "hi"));
+  Expect.isTrue(checkCatch(putIt, list, "hi"));
+}
+
+checkCatch(var f, var list, var index) {
+  try {
+    f(list, index);
+  } catch (IllegalArgumentException e) {
+    return true;
+  }
+  return false;
+}
+
+
+getIt(var a, var i) {
+  return a[i];
+}
+
+
+putIt(var a, var i) {
+  a[i] = null;
+}