- Fix use of String operator + in language and corelib tests.

tests/language/src/ExpectTest.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.
 // Testing the Expect class.
 
 class ExpectTest {
 
   static testEquals(a) {
     try {
       Expect.equals("AB", a, "within testEquals");
     } catch (Exception msg) {
       print(msg);
       return;
     }
-    Expect.equals("AB", a + "B");
+    Expect.equals("AB", a.concat("B"));

[kasperl, 2012/03/12 06:55:42]

String interpolation?

[Ivan Posva, 2012/04/11 14:26:00]

Done.

     throw "Expect.equals did not fail";
   }
 
   static testIsTrue(f) {
     try {
       Expect.isTrue(f);
     } catch (Exception msg) {
       print(msg);
       return;
     }
     Expect.isFalse(f);
     throw "Expect.isTrue did not fail";
   }
 
   static testIsFalse(t) {
     try {
       Expect.isFalse(t);
     } catch (Exception msg) {
       print(msg);
       return;
     }
     Expect.isTrue(t);
     throw "Expect.isFalse did not fail";
   }
 
   static testIdentical(a) {
-    var ab = a + "B";
+    var ab = a.concat("B");

[kasperl, 2012/03/12 06:55:42]

String interpolation?

[Ivan Posva, 2012/04/11 14:26:00]

Done.

     try {
       Expect.identical("AB", ab);
     } catch (Exception msg) {
       print(msg);
       return;
     }
     Expect.equals("AB", ab);
     throw "Expect.identical did not fail";
   }
 
@@ skipping 15 matching lines @@
     testIsFalse(0);
     testIdentical("A");
     testFail();
   }
 
 }
 
 main() {
   ExpectTest.testMain();
 }