[Bug 31609] New: TestLauncher says a required DLL is missing, but the test runs fine without TestLauncher

http://bugs.winehq.org/show_bug.cgi?id=31609

Bug #: 31609
           Summary: TestLauncher says a required DLL is missing, but the
                    test runs fine without TestLauncher
           Product: Testbot
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

http://source.winehq.org/git/tools.git/blob/HEAD:/testbot/src/TestLauncher/T...
has a function AllImportedDllsPresent() that tries to avoid running
tests that implicitly link against DLLs that aren't present.
Unfortunately, in the case of dlls with manifests, it reports it can't find
dlls that are in fact present.

What it needs is a good dose of the medicine that cured the same problem
in winetest:
http://www.winehq.org/pipermail/wine-cvs/2010-July/068410.html
A quick test shows that this works.  I'll send a patch soon.