Fixes #178

test/browser/runtime_tests.js

Index: test/browser/runtime_tests.js
diff --git a/test/browser/runtime_tests.js b/test/browser/runtime_tests.js
index 9b84c9bc6b5800df8536100a5c66fd9c3e6a9b1e..59d48d5603c7eed09f3083f71b0132cf54362fea 100644
--- a/test/browser/runtime_tests.js
+++ b/test/browser/runtime_tests.js
@@ -72,6 +72,13 @@ suite('generic', () => {
     assert.equal(someValue[dart.originalDeclaration], SomeType);
     assert.deepEqual(someValue[dart.typeArguments], ['hi', 123]);
   });
+
+  test('proper type constructor is called', () => {
+    // This tests https://github.com/dart-lang/dev_compiler/issues/178
+    let l = dart.setType([1, 2, 3], core.List$(core.int));
+    let s = l[core.$join]();
+    assert.equal(s, '123');
+  });
 });