user32: Implement SetCoalescableTimer and add basic tests.

[Sebastian Lackner]

On 29.04.2016 12:50, Marvin 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=22731
> 
> Your paranoid android.
> 
> 
> === w1064 (32 bit msg) ===
> msg.c:6484: Test failed: Update region shouldn't be empty
> msg.c:6718: Test failed: InvalidateErase: 0: the msg sequence is not complete: expected 0085 - actual 0000
> msg.c:6720: Test failed: Paint: 0: the msg sequence is not complete: expected 000f - actual 0000
> msg.c:6490: Test failed: Regions are different
> msg.c:6490: Test failed: Regions are different
> msg.c:6490: Test failed: Regions are different
> 
> === w864 (64 bit msg) ===
> msg.c:6484: Test failed: Update region shouldn't be empty
> msg.c:6718: Test failed: InvalidateErase: 0: the msg sequence is not complete: expected 0085 - actual 0000
> msg.c:6720: Test failed: Paint: 0: the msg sequence is not complete: expected 000f - actual 0000
> msg.c:6490: Test failed: Regions are different
> msg.c:6490: Test failed: Regions are different
> msg.c:6490: Test failed: Regions are different
> 
> === w1064 (64 bit msg) ===
> msg.c:6484: Test failed: Update region shouldn't be empty
> msg.c:6718: Test failed: InvalidateErase: 0: the msg sequence is not complete: expected 0085 - actual 0000
> msg.c:6720: Test failed: Paint: 0: the msg sequence is not complete: expected 000f - actual 0000
> msg.c:6490: Test failed: Regions are different
> msg.c:6490: Test failed: Regions are different
> msg.c:6490: Test failed: Regions are different
> 

These are existing test failures.