Support new getter syntax.

dart/tests/compiler/dart2js_extra/closure7_test.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.
 
 var foo;
 bar() => foo(3, 99);
 gee(f) => foo(fun: f);
 
-get foo2() => foo;
+get foo2 => foo;
 bar2() => foo2(3, 99);
 gee2(f) => foo2(fun: f);
 
 globalTest() {
   foo = () => 499;
   Expect.equals(499, foo());
   foo = (x, y) => x + y;
   Expect.equals(102, bar());
   foo = ([fun = null]) => fun(41);
   Expect.equals(42, gee((x) => x + 1));
 
   foo = () => 499;
   Expect.equals(499, foo2());
   foo = (x, y) => x + y;
   Expect.equals(102, bar2());
   foo = ([fun = null]) => fun(41);
   Expect.equals(42, gee2((x) => x + 1));
 }
 
 class A {
   static var foo;
   static bar() => foo(3, 99);
   static gee(f) => foo(fun: f);
 
-  static get foo2() => foo;
+  static get foo2 => foo;
   static bar2() => foo2(3, 99);
   static gee2(f) => foo2(fun: f);
 }
 
 staticTest() {
   A.foo = () => 499;
   Expect.equals(499, A.foo());
   A.foo = (x, y) => x + y;
   Expect.equals(102, A.bar());
   A.foo = ([fun = null]) => fun(41);
   Expect.equals(42, A.gee((x) => x + 1));
 
   A.foo = () => 499;
   Expect.equals(499, A.foo2());
   A.foo = (x, y) => x + y;
   Expect.equals(102, A.bar2());
   A.foo = ([fun = null]) => fun(41);
   Expect.equals(42, A.gee2((x) => x + 1));
 }
 
 main() {
   globalTest();
   staticTest();
 }