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

tests/language/src/CallThroughGetterTest.dart

Index: tests/language/src/CallThroughGetterTest.dart
===================================================================
--- tests/language/src/CallThroughGetterTest.dart	(revision 5311)
+++ tests/language/src/CallThroughGetterTest.dart	(working copy)
@@ -111,7 +111,7 @@
     var exception = catchException(fn);
     if (!(exception is ObjectNotClosureException)) {
       Expect.fail("Wrong exception.  Expected: ObjectNotClosureException"
-          + " got: ${exception}");
+          " got: ${exception}");
     }
   }
 
@@ -155,7 +155,7 @@
   get y() { _mark('y'); return 1; }
   get z() { _mark('z'); return 2; }
 
-  _mark(m) { _order += m; return _order; }
+  _mark(m) { _order = _order.concat(m); return _order; }

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

This would be cleaner with a string buffer, but I understand if you don't want
to mess too much with this test.

Pretty sure something like:

   _order.add(m); return _order.toString()

would work fine if you change _order to a StringBuffer.

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

Done.

   String _order;
 
 }