More parser stuff to handle pseudo keywords as identifiers

tests/language/src/PseudoKWTest.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.
 // Check that we can use pseudo keywords as names in function level code.
 
 
 class PseudoKWTest {
   static testMain() {
 
     // This is a list of built-in identifiers from the Dart spec.
@@ skipping 70 matching lines @@
   static() {
     var set = new B();
     set.get = set;
     Expect.equals(200, set.get);
   }
   int operator() {
     return 1;
   }
 }
 
+class C {
+  static int operator = (5);
+  static var get;
+  static get set() => 111;
+  static set set(set) { }
+}
+
 
 main() {
   PseudoKWTest.testMain();
   A.check();
   new B().static();
   Expect.equals(1, new B().operator());
   Expect.equals(1, A.static());
   typedef("T");
   Expect.equals("typedef T", typedef("T"));
   static("true");
   Expect.equals(false, static("true"));
+  Expect.equals(5, C.operator);
+  Expect.equals(null, C.get);
+  C.set = 0;
+  Expect.equals(111, C.set);
 }