Support default constructors in analyzer2dart.

tests/compiler/dart2js/backend_dart/end2end_test.dart

Index: tests/compiler/dart2js/backend_dart/end2end_test.dart
diff --git a/tests/compiler/dart2js/backend_dart/end2end_test.dart b/tests/compiler/dart2js/backend_dart/end2end_test.dart
index 5f70f16caa3708b05bc2f5ae367947ac8df95db1..a2a25208928510c9d8715a1ac0196cf30ffc9d28 100644
--- a/tests/compiler/dart2js/backend_dart/end2end_test.dart
+++ b/tests/compiler/dart2js/backend_dart/end2end_test.dart
@@ -16,20 +16,22 @@ import '../../../../pkg/analyzer2dart/test/end2end_data.dart';
 import 'test_helper.dart';
 import '../output_collector.dart';
 
-main() {
-  performTests(TEST_DATA, asyncTester, (TestSpec result) {
-    OutputCollector outputCollector = new OutputCollector();
-    asyncTest(() => compilerFor(result.input, outputProvider: outputCollector)
-        .then((Compiler compiler) {
-      String expectedOutput = result.output.trim();
-      compiler.phase = Compiler.PHASE_COMPILING;
-      DartBackend backend = compiler.backend;
-      backend.assembleProgram();
-      String output = outputCollector.getOutput('', 'dart').trim();
-      Expect.equals(expectedOutput, output,
-          '\nInput:\n${result.input}\n'
-          'Expected:\n$expectedOutput\n'
-          'Actual:\n$output\n');
-    }));
-  });
+main(List<String> args) {
+  performTests(TEST_DATA, asyncTester, runTest, args);
+}
+
+runTest(TestSpec result) {
+  OutputCollector outputCollector = new OutputCollector();
+  asyncTest(() => compilerFor(result.input, outputProvider: outputCollector)
+      .then((Compiler compiler) {
+    String expectedOutput = result.output.trim();
+    compiler.phase = Compiler.PHASE_COMPILING;
+    DartBackend backend = compiler.backend;
+    backend.assembleProgram();
+    String output = outputCollector.getOutput('', 'dart').trim();
+    Expect.equals(expectedOutput, output,
+        '\nInput:\n${result.input}\n'
+        'Expected:\n$expectedOutput\n'
+        'Actual:\n$output\n');
+  }));
 }