Fix tests

Removing an assert that trips after the TL class removal.

I will look into why the assertion fails in a follow-on change.

Committed: https://github.com/dart-lang/sdk/commit/1df143b6b6943b501d00564d3510f47108b82c62

[hausner, 2015-12-01 20:59:19]

Description was changed from

==========
wip

BUG=
==========

to

==========
Removing an assert that trips after the TL class removal.

I will look into why the assertion fails in a follow-on change.
==========

[hausner, 2015-12-01 20:59:19]

hausner@google.com changed reviewers:
+ rmacnak@google.com

[hausner, 2015-12-01 21:04:42]

Description was changed from

==========
Removing an assert that trips after the TL class removal.

I will look into why the assertion fails in a follow-on change.
==========

to

==========
Removing an assert that trips after the TL class removal.

I will look into why the assertion fails in a follow-on change.

Committed:
https://github.com/dart-lang/sdk/commit/1df143b6b6943b501d00564d3510f47108b82c62
==========

[hausner, 2015-12-01 21:04:43]

Committed patchset #1 (id:1) manually as
1df143b6b6943b501d00564d3510f47108b82c62 (presubmit successful).

[hausner, 2015-12-01 21:05:02]

TBR=rmacnak

[rmacnak, 2015-12-01 21:09:31]

lgtm


Given the in-flight changes to where top-level members are found, I think this
assert is no longer valid anyway.