[v4] shell32: fix two bugs in IQueryAssocations

[Theodore Dubois]

Seems like Windows 2003 behaves differently in this case from every other Windows version tested. Should I “fix” it by deleting tests? Probably not.

Plus, the Windows XP tests are timing out. Not sure why.

~Theodore

> On Feb 16, 2016, at 10:26 AM, Marvin <testbot at winehq.org> wrote:
> 
> Hi,
> 
> While running your changed tests on Windows, I think I found new failures.
> Being a bot and all I'm not very good at pattern recognition, so I might be
> wrong, but could you please double-check?
> Full results can be found at
> https://testbot.winehq.org/JobDetails.pl?Key=20568
> 
> Your paranoid android.
> 
> 
> === w2003std (32 bit assoc) ===
> assoc.c:122: Test failed: GetString returned 0x80070002, expected 0x0
> assoc.c:174: Test failed: 
> assoc.c:122: Test failed: GetString returned 0x80070002, expected 0x0
> assoc.c:178: Test failed: 
> assoc.c:122: Test failed: GetString returned 0x80070002, expected 0x80070483
> assoc.c:183: Test failed: 
> assoc.c:122: Test failed: GetString returned 0x80070002, expected 0x80070483
> assoc.c:184: Test failed: 
> assoc.c:122: Test failed: GetString returned 0x80070002, expected 0x80070483
> assoc.c:185: Test failed: