dart2dart Fix renaming of top-level setters.

tests/compiler/dart2js/unparser_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.
 
 #import('dart:uri');
 #import('parser_helper.dart');
 #import("../../../lib/compiler/compiler.dart");
 #import("../../../lib/compiler/implementation/tree/tree.dart");
 
 testUnparse(String statement) {
@@ skipping 403 matching lines @@
 testLibraryGetSet() {
   var librarySrc = '''
 #library('mylib');
 
 get topgetset() => 5;
 set topgetset(arg) {}
 ''';
   var mainSrc = '''
 #import('mylib.dart', prefix: 'mylib');
 
+get topgetset() => 6;
+set topgetset(arg) {}
+
 main() {
+  topgetset;
+  topgetset = 6;
+
   mylib.topgetset;
   mylib.topgetset = 5;
 }
 ''';
   var expectedResult =
-    'get topgetset()=> 5;'
+    'get p_topgetset()=> 5;'
+    'set p_topgetset(arg){}'
+    'get topgetset()=> 6;'
     'set topgetset(arg){}'
-    'main(){topgetset; topgetset=5;}';
+    'main(){topgetset; topgetset=6; p_topgetset; p_topgetset=5;}';
   testDart2DartWithLibrary(mainSrc, librarySrc,
       (String result) { Expect.equals(expectedResult, result); });
 }
 
 testFieldTypeOutput() {
   testDart2Dart('main(){new A().field;}class B{}class A{B field;}');
 }
 
 main() {
   testSignedConstants();
@@ skipping 18 matching lines @@
   testAbstractClass();
   //testConflictSendsRename();
   testNoConflictSendsRename();
   testConflictLibraryClassRename();
   testDefaultClassWithArgs();
   testClassExtendsWithArgs();
   testStaticInvocation();
   testLibraryGetSet();
   testFieldTypeOutput();
 }