mshtml: Compile tests with __WINESRC__ define.

[Marvin]

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://newtestbot.winehq.org/JobDetails.pl?Key=2689

Your paranoid android.


=== w864 (64 bit activex) ===
activex.c:1346: Test failed: unexpected call SetObjectRects

=== wxppro (32 bit htmldoc) ===
htmldoc.c:2898: Test failed: mon(0026BFD0) != exmon(00269670)
htmldoc.c:7601: Test failed: mon(0026BFD0) != exmon(00269670)
htmldoc.c:5978: Test failed: mon(0026BFD0) != exmon(00269670)
htmldoc.c:2898: Test failed: mon(0029CA28) != exmon(00286FF8)
htmldoc.c:7601: Test failed: mon(0029CA28) != exmon(00286FF8)
htmldoc.c:5978: Test failed: mon(0029CA28) != exmon(00286FF8)

=== wvista (32 bit htmldoc) ===
No test summary line found

=== w7pro64 (32 bit htmldoc) ===
No test summary line found