Add support for running constructors with new

pkg/kernel/testcases/interpreter/constructor_simple_test.dart

Index: pkg/kernel/testcases/interpreter/constructor_simple_test.dart
diff --git a/pkg/kernel/testcases/interpreter/constructor_simple_test.dart b/pkg/kernel/testcases/interpreter/constructor_simple_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..f1a074b122bb56d5d1dab9e08b710206b24131ef
--- /dev/null
+++ b/pkg/kernel/testcases/interpreter/constructor_simple_test.dart
@@ -0,0 +1,21 @@
+// Copyright (c) 2017, 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.
+
+/// Test program that creates an object by invoking a constor without
+/// initializers.
+main() {
+  var objA = new A(37, 'test');
+  print(objA.a);
+  print(objA.b);
+}
+
+class A {
+  int a;
+  String b;
+
+  A(int a, String b) {
+    this.a = a;
+    this.b = b;
+  }
+}