shell32/tests: Initialize all fields of SHFILEOPSTRUCT variables (Coverity)

[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
http://testbot.winehq.org/JobDetails.pl?Key=15738

Your paranoid android.


=== WNT4WSSP6 (32 bit shlfileop) ===
shlfileop.c:1011: Test failed: Expected aborted operations
shlfileop.c:2214: Test failed: SHGetNewLinkInfoA succeeded