Add corelib tests

test/codegen/corelib/list_removeat_test.dart

Index: test/codegen/corelib/list_removeat_test.dart
diff --git a/test/codegen/corelib/list_removeat_test.dart b/test/codegen/corelib/list_removeat_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..d9c745367dfccdd9db173e1c82b191441647a66f
--- /dev/null
+++ b/test/codegen/corelib/list_removeat_test.dart
@@ -0,0 +1,82 @@
+// 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.
+
+import "package:expect/expect.dart";
+import 'dart:collection';
+
+class MyList extends ListBase {
+  List list;
+  MyList(this.list);
+
+  get length => list.length;
+  set length(val) { list.length = val; }
+
+  operator [](index) => list[index];
+  operator []=(index, val) => list[index] = val;
+
+  String toString() => "[" + join(", ") + "]";
+}
+
+// l1 must be a modifiable list with 5 elements from 0 to 4.
+void testModifiableList(l1) {
+  bool checkedMode = false;
+  assert(checkedMode = true);
+
+  // Index must be integer and in range.
+  Expect.throws(() { l1.removeAt(-1); },
+                (e) => e is RangeError,
+                "negative");
+  Expect.throws(() { l1.removeAt(5); },
+                (e) => e is RangeError,
+                "too large");
+  Expect.throws(() { l1.removeAt(null); },
+                (e) => e is ArgumentError,
+                "too large");
+  Expect.throws(() { l1.removeAt("1"); },
+                (e) => (checkedMode ? e is TypeError
+                                    : e is ArgumentError),
+                "string");
+  Expect.throws(() { l1.removeAt(1.5); },
+                (e) => (checkedMode ? e is TypeError
+                                    : e is ArgumentError),
+                "double");
+
+  Expect.equals(2, l1.removeAt(2), "l1-remove2");
+  Expect.equals(1, l1[1], "l1-1[1]");
+
+  Expect.equals(3, l1[2], "l1-1[2]");
+  Expect.equals(4, l1[3], "l1-1[3]");
+  Expect.equals(4, l1.length, "length-1");
+
+  Expect.equals(0, l1.removeAt(0), "l1-remove0");
+  Expect.equals(1, l1[0], "l1-2[0]");
+  Expect.equals(3, l1[1], "l1-2[1]");
+  Expect.equals(4, l1[2], "l1-2[2]");
+  Expect.equals(3, l1.length, "length-2");
+}
+
+void main() {
+  // Normal modifiable list.
+  testModifiableList([0, 1, 2, 3, 4]);
+  testModifiableList(new MyList([0, 1, 2, 3, 4]));
+
+  // Fixed size list.
+  var l2 = new List(5);
+  for (var i = 0; i < 5; i++) l2[i] = i;
+  Expect.throws(() { l2.removeAt(2); },
+                (e) => e is UnsupportedError,
+                "fixed-length");
+
+  // Unmodifiable list.
+  var l3 = const [0, 1, 2, 3, 4];
+  Expect.throws(() { l3.removeAt(2); },
+                (e) => e is UnsupportedError,
+                "unmodifiable");
+
+  // Empty list is not special.
+  var l4 = [];
+  Expect.throws(() { l4.removeAt(0); },
+                (e) => e is RangeError,
+                "empty");
+}