More parser stuff to handle pseudo keywords as identifiers

tests/language/src/PseudoKWTest.dart

Index: tests/language/src/PseudoKWTest.dart
===================================================================
--- tests/language/src/PseudoKWTest.dart	(revision 3317)
+++ tests/language/src/PseudoKWTest.dart	(working copy)
@@ -88,7 +88,14 @@
   }
 }
 
+class C {
+  static int operator = (5);
+  static var get;
+  static get set() => 111;
+  static set set(set) { }
+}
 
+
 main() {
   PseudoKWTest.testMain();
   A.check();
@@ -99,4 +106,8 @@
   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);
 }