dart2dart fix synthesized constructor appearing in unparser. Don't output it.

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 184b4d448484f31fbd50de93a0ce5dac1c5a71e7..a759a0a34535887017c86850bb713f737eef3313 100644
--- a/tests/compiler/dart2js/unparser_test.dart
+++ b/tests/compiler/dart2js/unparser_test.dart
@@ -132,6 +132,16 @@ testSimpleTopLevelClass() {
   testDart2Dart(src, (String s) => Expect.equals(src, s));
 }
 
+testClassWithSynthesizedConstructor() {
+  final src = 'main(){new A();}class A{}';
+  testDart2Dart(src, (String s) => Expect.equals(src, s));

[Anton Muhin, 2012/07/10 13:27:46]

definitely the time to introduce a helper which checks the string doesn't change
after dart2dart.

[Roman, 2012/07/10 13:47:16]

Done. If no continuation is passed to testDart2Dart() it will just check that
source does not change.

+}
+
+testClassWithMethod() {
+  final src = 'main(){var a=new A(); a.foo();}class A{void foo(){}}';
+  testDart2Dart(src, (String s) => Expect.equals(src, s));
+}
+
 main() {
   testGenericTypes();
   testForLoop();
@@ -144,5 +154,7 @@ main() {
   testSimpleFileUnparse();
   testSimpleObjectInstantiation();
   testSimpleTopLevelClass();
+  testClassWithSynthesizedConstructor();
+  testClassWithMethod();
   testTopLevelField();
 }