[D3D9] Update state test framework

[Ivan Gyurdiev]

H. Verbeet wrote:
> On 26/09/06, Ivan Gyurdiev <ivg231 at gmail.com> wrote:
>> change I'm interested in. However, I'm not sure why that would be better
>> - it would accomplish the exact same thing in twice the amount of time.
> Well, there are two things I can think of right away:
>  - It makes thing easier to review
>  - It helps with tracking down regressions
I will make the required changes, as discussed with julliard on IRC.

...but this is really a theoretical argument. This is a framework mostly 
written by me to begin with, so the chances of breaking it are 
essentially zero. If it does get broken, the damage factor will be very 
low - it won't test as well as it used to.

If you want to help prevent regressions, please help write more state 
tests using this framework, rather than focusing on unimportant details. 
We need more test coverage! In fact, part of the motivation behind the 
changes being made is to make the framework a bit easier to understand 
and more flexible, so that others can contribute. If you don't like this 
framework, feel free to redesign it - but we have a number of obvious 
bugs in state management that need fixing, and test verification is the 
first step to doing that.

Ivan