Rename elements after sorting.

tests/compiler/dart2js/unparser_test.dart

Index: tests/compiler/dart2js/unparser_test.dart
diff --git a/tests/compiler/dart2js/unparser_test.dart b/tests/compiler/dart2js/unparser_test.dart
index 43d362dc9cd38bf4c719ef8e9cc46699ad10642a..b0c79e33be033d3090abc4e781c3ed56e12694fe 100644
--- a/tests/compiler/dart2js/unparser_test.dart
+++ b/tests/compiler/dart2js/unparser_test.dart
@@ -502,13 +502,13 @@ main() {
 }
 ''';
   var expectedResult =
-    'interface p_I default B{p_I();}'
-    'class A implements p_I{A(){}}'
-    'class B{factory p_I(){}}'
-    'interface I default p_B{I();}'
-    'class p_A implements I{p_A(){}}'
-    'class p_B{factory I(){}}'
-    'main(){new I(); new p_A(); new p_I(); new A();}';
+    'interface I default B{I();}'
+    'class A implements I{A(){}}'
+    'class B{factory I(){}}'
+    'interface p_I default p_B{p_I();}'
+    'class p_A implements p_I{p_A(){}}'
+    'class p_B{factory p_I(){}}'
+    'main(){new p_I(); new p_A(); new I(); new A();}';
   testDart2DartWithLibrary(mainSrc, librarySrc,
       (String result) { Expect.equals(expectedResult, result); });
 }