[3/7] msi/tests: Fix test failures on wow64.

[testbot at testbot.winehq.org]

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
http://testbot.winehq.org/JobDetails.pl?Key=3718

Your paranoid android.


=== W7PROX64 (32 bit package) ===
package.c:7614: Test failed: Expected "C:\winetest\FileName1", got ""
package.c:7620: Test failed: Expected "C:\winetest\FileName2", got ""
package.c:7626: Test failed: Expected "C:\winetest\FileName3", got ""
package.c:7638: Test failed: Expected "C:\winetest\FileName5", got ""
package.c:7644: Test failed: Expected "C:\winetest\", got ""
package.c:7650: Test failed: Expected "C:\winetest\", got ""
package.c:7666: Test failed: Expected "C:\winetest\FileName8.dll", got ""
package.c:7677: Test failed: Expected "C:\winetest\FileName10.dll", got ""

=== W7PROX64 (64 bit package) ===
package.c:8223: Test failed: Expected "C:\winetest\FileName1", got ""
package.c:8234: Test failed: Expected "C:\winetest\", got ""
package.c:8245: Test failed: Expected "C:\winetest\", got ""
package.c:8295: Test failed: Expected "C:\winetest\FileName3.dll", got ""
package.c:8306: Test failed: Expected "C:\winetest\FileName5.dll", got ""
package.c:8315: Test failed: Expected "C:\", got ""
package.c:8321: Test failed: Expected "C:\winetest\", got ""
package.c:8342: Test failed: Expected "C:\winetest\FileName1", got ""
package.c:8351: Test failed: Expected "C:\winetest\FileName1", got ""