Commit 8ee2e497 introduced a regression for CONFIG-=flat vcxproj files.
Files with custom build steps (e.g. foo.h with Q_OBJECT) were written
into top-level filters ("Header Files" instead of
"Header Files\my\sub\dir").
The assumption that the parameter filtername always equals
VCFilter::name was wrong.
Change-Id: Id5178550310d06b73e42f18597a27012ddd89bb7
Task-number: QTBUG-44413
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
f90c186058