Make hasNext a getter instead of a method.

tests/corelib/reg_exp_all_matches_test.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 program for RegExp.allMatches.
 
 class RegExpAllMatchesTest {
   static testIterator() {
     var matches = new RegExp("foo").allMatches("foo foo");
     Iterator it = matches.iterator();
-    Expect.equals(true, it.hasNext());
+    Expect.equals(true, it.hasNext);
     Expect.equals('foo', it.next().group(0));
-    Expect.equals(true, it.hasNext());
+    Expect.equals(true, it.hasNext);
     Expect.equals('foo', it.next().group(0));
-    Expect.equals(false, it.hasNext());
+    Expect.equals(false, it.hasNext);
 
     // Run two iterators over the same results.
     it = matches.iterator();
     Iterator it2 = matches.iterator();
-    Expect.equals(true, it.hasNext());
-    Expect.equals(true, it2.hasNext());
+    Expect.equals(true, it.hasNext);
+    Expect.equals(true, it2.hasNext);
     Expect.equals('foo', it.next().group(0));
     Expect.equals('foo', it2.next().group(0));
-    Expect.equals(true, it.hasNext());
-    Expect.equals(true, it2.hasNext());
+    Expect.equals(true, it.hasNext);
+    Expect.equals(true, it2.hasNext);
     Expect.equals('foo', it.next().group(0));
     Expect.equals('foo', it2.next().group(0));
-    Expect.equals(false, it.hasNext());
-    Expect.equals(false, it2.hasNext());
+    Expect.equals(false, it.hasNext);
+    Expect.equals(false, it2.hasNext);
   }
 
   static testForEach() {
     var matches = new RegExp("foo").allMatches("foo foo");
     var strbuf = new StringBuffer();
     matches.forEach((Match m) {
       strbuf.add(m.group(0));
     });
     Expect.equals("foofoo", strbuf.toString());
   }
@@ skipping 67 matching lines @@
     testEvery();
     testSome();
     testIsEmpty();
     testGetCount();
   }
 }
 
 main() {
   RegExpAllMatchesTest.testMain();
 }