Make first and last getters.

pkg/unittest/mock.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.
 
 /**
  * The error formatter for mocking is a bit different from the default one
  * for unit testing; instead of the third argument being a 'reason'
  * it is instead a [signature] describing the method signature filter
  * that was used to select the logs that were verified.
  */
@@ skipping 352 matching lines @@
     logs = new List<LogEntry>();
   }
 
   /** Add a [LogEntry] to the log. */
   add(LogEntry entry) => logs.add(entry);
 
   /** Get the first entry, or null if no entries. */
   get first => (logs == null || logs.length == 0) ? null : logs[0];
 
   /** Get the last entry, or null if no entries. */
-  get last => (logs == null || logs.length == 0) ? null : logs.last();
+  get last => (logs == null || logs.length == 0) ? null : logs.last;
 
   /** Creates a LogEntry predicate function from the argument. */
   Function _makePredicate(arg) {
     if (arg == null) {
       return (e) => true;
     } else if (arg is CallMatcher) {
       return (e) => arg.matches(e.methodName, e.args);
     } else if (arg is Function) {
       return arg;
     } else {
@@ skipping 1066 matching lines @@
       }
     }
   }
 
   /** Clear both logs and behavior. */
   void reset() {
     resetBehavior();
     clearLogs();
   }
 }