dart2dart Fix collecting type of class fields

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 4dd587b6ca6f5bb04f7012efc33af762695fdcac..27df5c19d0753734dd272d8109630f39ebefba1c 100644
--- a/tests/compiler/dart2js/unparser_test.dart
+++ b/tests/compiler/dart2js/unparser_test.dart
@@ -416,6 +416,10 @@ main() {
       (String result) { Expect.equals(expectedResult, result); });
 }
 
+testFieldTypeOutput() {
+  testDart2Dart('main(){new A().field;}class B{}class A{B field;}');
+}
+
 main() {
   testSignedConstants();
   testGenericTypes();
@@ -444,4 +448,5 @@ main() {
   testClassExtendsWithArgs();
   testStaticInvocation();
   testLibraryGetSet();
+  testFieldTypeOutput();
 }