test rename overhaul: step 8 - language tests

tests/language/src/SuperOperatorTest.dart

-// 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.
-// Dart test for testing super operator calls
-
-
-class A {
-  String val = "";
-  List things;
-
-  A() : things = ['D', 'a', 'r', 't', 42];
-
-  operator + (String s) {
-    val = "${val}${s}";
-    return this;
-  }
-
-  operator [] (i) {
-    return things[i];
-  }
-
-  operator []= (i, val) {
-    return things[i] = val;
-  }
-}
-
-
-class B extends A {
-  operator + (String s) {
-    super + ("${s}${s}");  // Call A.operator+(this, "${s}${s}").
-    return this;
-  }
-
-  operator [] (i) {
-    var temp = super[i];
-    if (temp is String) {
-      return "$temp$temp";
-    }
-    return temp + temp;
-  }
-
-  operator []= (i, val) {
-    // Make sure the index expression is only evaluated
-    // once in the presence of a compound assignment.
-    return super[i++] += val;
-  }
-
-}
-
-main () {
-  var a = new A();
-  a = a + "William";  // operator + of class A.
-  Expect.equals("William", a.val);
-  Expect.equals("r", a[2]);  // operator [] of class A.
-
-  a = new B();
-  a += "Tell";   // operator + of class B.
-  Expect.equals("TellTell", a.val);
-  Expect.equals("rr", a[2]);  // operator [] of class B.
-
-  a[4] = 1;  // operator []= of class B.
-  Expect.equals(43, a.things[4]);
-  Expect.equals(86, a[4]);
-
-}