Use the whole value of 'name', not just the first element, and also
replace variables like ${QMAKE_FILE_IN}.
This fixes the file_copies feature (COPIES) for Visual Studio
projects, because for every entry in COPIES an extra compiler is
created with a name 'COPY ${QMAKE_FILE_IN}'. Before this patch the
name and the generated file filter would be just 'COPY'. However,
duplicate filters are being skipped by the VS project generator. All
but the first COPIES entry was ignored.
Fixes: QTBUG-76010
Change-Id: Icaa5d2cb8d88ae3ef8ce86220198bca1b9e673f5
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
68866b1a7b