test rename overhaul: step 8 - language tests

tests/language/src/OperatorIndexEvaluationOrderTest.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.
-
-class B {
-  int value;
-  List trace;
-  B(this.trace) : value = 100;
-  operator [](index) {
-    trace.add(-3);
-    trace.add(index);
-    trace.add(this.value);
-    this.value = this.value + 1;
-    return this;
-  }
-
-  operator []=(index, value) {
-    trace.add(-5);
-    trace.add(index);
-    trace.add(value.value);
-    this.value = this.value + 1;
-  }
-
-  operator +(int value) {
-    trace.add(-4);
-    trace.add(this.value);
-    trace.add(value);
-    this.value = this.value + 1;
-    return this;
-  }
-}
-
-B getB(trace) {
-  trace.add(-1);
-  return new B(trace);
-}
-
-int getIndex(trace) {
-  trace.add(-2);
-  return 42;
-}
-
-main() {
-  List trace = new List();
-  getB(trace)[getIndex(trace)] += 37;
-
-  Expect.listEquals([-1, -2, -3, 42, 100, -4, 101, 37, -5, 42, 102], trace);
-}