Add regression test for the parallel jobs dependency issue.

Add regression test for the parallel jobs dependency issue.

Well, the funny thing is that it doesn't find the bug but the framework is
already good enough as-is to be worth checked-in, so the next commit can show
the relevant difference.

R=dpranke@chromium.org
BUG=60725
TEST=

Committed: 98869

[Dirk Pranke, 2011-08-29 20:53:28]

Can you add some more comments describing what you're testing and verifying? I
fear that it might be hard for someone else to understand what you're looking
for here.

[M-A Ruel, 2011-08-30 15:07:34]

http://codereview.chromium.org/7773001/diff/3001/tests/gclient_test.py
File tests/gclient_test.py (right):

http://codereview.chromium.org/7773001/diff/3001/tests/gclient_test.py#newcode85
tests/gclient_test.py:85: # Verify that dependencies are processed in the right
order, e.g. if there
Added a comment to explain what this function checks.

[Dirk Pranke, 2011-08-30 20:34:54]

LGTM.