[4/7] msi/tests: Return an error code from helper_createpackage and package_from_db.

[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=3719

Your paranoid android.


=== W7PROX64 (32 bit package) ===
package.c:7618: Test failed: Expected "C:\winetest\FileName1", got ""
package.c:7624: Test failed: Expected "C:\winetest\FileName2", got ""
package.c:7630: Test failed: Expected "C:\winetest\FileName3", got ""
package.c:7642: Test failed: Expected "C:\winetest\FileName5", got ""
package.c:7648: Test failed: Expected "C:\winetest\", got ""
package.c:7654: Test failed: Expected "C:\winetest\", got ""
package.c:7670: Test failed: Expected "C:\winetest\FileName8.dll", got ""
package.c:7681: Test failed: Expected "C:\winetest\FileName10.dll", got ""

=== W7PROX64 (64 bit package) ===
package.c:8227: Test failed: Expected "C:\winetest\FileName1", got ""
package.c:8238: Test failed: Expected "C:\winetest\", got ""
package.c:8249: Test failed: Expected "C:\winetest\", got ""
package.c:8299: Test failed: Expected "C:\winetest\FileName3.dll", got ""
package.c:8310: Test failed: Expected "C:\winetest\FileName5.dll", got ""
package.c:8319: Test failed: Expected "C:\", got ""
package.c:8325: Test failed: Expected "C:\winetest\", got ""
package.c:8346: Test failed: Expected "C:\winetest\FileName1", got ""
package.c:8355: Test failed: Expected "C:\winetest\FileName1", got ""