DRT messages have gotten much worse recently. If I open the same thing in Dartium, I get:

    Error:

    http://127.0.0.1:35669/root_dart/samples/third_party/todomvc/test/listorder_test.html?crossOriginPort=58094:0:
    Exception: No static method 'register' declared in class 'Polymer'.

    NoSuchMethodError: incorrect number of arguments passed to method named 'register'
    Receiver: Type: class 'Polymer'
    Tried calling: register("editable-label", type: Type: class 'EditableLabel')
    Found: register(String, [Type])

That's pretty useful. But from the command line this message doesn't appear.

You can reproduce by adding a bug somewhere in TodoMVC, then run:

$ python tools/test.py -mrelease -rdrt --checked -t240 samples/third_party/todomvc/test/listorder_test

FAILED: none-drt-checked release_ia32 samples/third_party/todomvc/test/listorder_test
Expected: Pass
Actual: RuntimeError
CommandOutput[content_shell]:

stdout:
CONSOLE MESSAGE: line 210: Error:

http://127.0.0.1:35669/root_dart/samples/third_party/todomvc/test/listorder_test.html?crossOriginPort=58094:0:
Exception: InvalidStateError: Internal Dartium Exception

CONSOLE MESSAGE: line 210: FAIL
Content-Type: text/plain
 Error:

http://127.0.0.1:35669/root_dart/samples/third_party/todomvc/test/listorder_test.html?crossOriginPort=58094:0:
Exception: InvalidStateError: Internal Dartium Exception

FAIL

EOF

EOF

stderr:
Xlib: extension "RANDR" missing on display ":99".

EOF

To retest, run: /mnt/code/dart/dart/tools/testing/bin/linux/dart /mnt/code/dart/dart/tools/testing/dart/http_server.dart -p 35669 -c 58094 --build-directory=/mnt/code/dart/dart/out/ReleaseIA32 --runtime=drt

Command[content_shell]: /mnt/code/dart/dart/client/tests/drt/content_shell --no-timeout --dump-render-tree http://127.0.0.1:35669/root_dart/samples/third_party/todomvc/test/listorder_test.html?crossOriginPort=58094
Took 0:00:02.492000

Short reproduction command (experimental):
    python tools/test.py -mrelease -rdrt --checked -t240 samples/third_party/todomvc/test/listorder_test

===
=== 4 tests failed
===

[00:03 | 100% | + 0 | - 4]