On Windows, processes are not reassigned to pid 1 when their parent
dies. This means many processes could have the same ppid despite being
started by unrelated processes. It also means test_Toolhelp() cannot
reliably look up the nested process by its ppid.
So look up for the nested process by its pid and only then check its
ppid, executable file, etc.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48664Signed-off-by: Francois Gouget <fgouget@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>