Fixed some comment directive tests.

[nventuro]

The assert statements checks for assertErrorCount(report, 1), but the disabled line is pragma solidity ^0.4.4;, which triggers a warning ('compiler version must be fixed'), not an error, so the test isn't really testing whether or not disable-next-line works.

This makes it so that both lines have an error.

[coveralls]

Coverage remained the same at 99.526% when pulling b963b98 on nventuro:directive-tests into f389547 on protofire:master.

[fvictorio]

Makes sense. Maybe we can just add this as part of #91?

[nventuro]

Done in 99efbf9