Fix the names of some tests.

Fix the names of some tests.

A couple of tests didn't end in "_test", so weren't being run.
Turns out that masked a bug! Oops.

BUG=
R=nweiz@google.com

Committed: https://code.google.com/p/dart/source/detail?r=28291

[nweiz, 2013-10-04 23:02:44]

lgtm

I feel like this would be easier to avoid if we didn't name test files in
complete sentences -- that is, if we allowed files to contain multiple tests.
:-|

[Bob Nystrom, 2013-10-04 23:21:29]

Committed patchset #1 manually as r28291 (presubmit successful).

[Bob Nystrom, 2013-10-04 23:23:40]

On 2013/10/04 23:02:44, nweiz wrote:
> lgtm
> 
> I feel like this would be easier to avoid if we didn't name test files in
> complete sentences -- that is, if we allowed files to contain multiple tests.
> :-|

Yeah. I'm up for doing some test file consolidation. I do want to make sure
that:

1. Any given test file runs pretty quickly. Our tests tend to be way slower than
the average unit test.
2. Any given test file isn't very long. Each of our tests tends to be pretty
big, and I hate wading through huge test suites.
3. We have some easy way of running a single test in isolation. solo_test works,
but it's a bit of a chore.

In the future, I think we'll probably have a new test system that's more
mirror-based with a dedicated test runner. When we do, we can revisit a lot of
this.