user32/tests: Test for behavior of WM_SETTEXT handler

[Alexander LAW]

Hello,
I've tried to submit the new test for WM_SETTEXT button handler 
(user32/tests/msg.c), corresponding to the patch that I proposed for the 
bug #25790.
But Marvin reports that this test (user32 msg) fails on W7PROX64 (64-bit 
app).
I've tried to run Marvin's user32_test64.exe file on a Windows 2008 R2 
and got the same. Apparently, it stucks in a loop (somewhere after my 
code). Then I compiled 64-bit user32_test.exe (using 
amd64-mingw32msvc-gcc (GCC) 4.4.4 ||) and ran it on the same machine. 
And it passed without any errors. I've setup another MinGW-w64 package, 
compiled another version of user32_test.exe (using 
x86_64-w64-mingw32-gcc (GCC) 4.4.5 20101001) and it worked too.
Meanwhile, Marvin uses GCC 4.4.1-1a (as I found from his user32_test64.exe).
I think that user32_test64 fail related to GCC version (and the test 
would fail with or without my additions).

So, what can I do to get my initial patch for the bug commited? To setup 
GCC 4.4.1 and get a user32_test.exe, that would not work on Windows x64, 
then to find what causes the app to stuck and propose a patch for msg.c 
to workaround the issue? Or maybe just wait till Marvin gets GCC 
updated? Or maybe the initial patch can be commited without the 
corresponding test?

WBR,
Alexander








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