Utils: Make FilePathAspect::value() return a QString

This is meant to be the "internal", raw, unexpanded value that does not
necessarily match a scheme://host/path pattern before expansion.

Change-Id: I627afbe1e9682d85c5bb04542c7354760ba9a13f
Reviewed-by: Marcus Tillmanns <marcus.tillmanns@qt.io>

src/plugins/vcsbase/vcsbaseclientsettings.cpp

@@ -38,7 +38,8 @@ VcsBaseSettings::~VcsBaseSettings() = default;
 
 FilePaths VcsBaseSettings::searchPathList() const
 {
-    return Utils::transform(path.stringValue().split(HostOsInfo::pathListSeparator(), Qt::SkipEmptyParts),
+    // FIXME: Filepathify
+    return Utils::transform(path.value().split(HostOsInfo::pathListSeparator(), Qt::SkipEmptyParts),
                             &FilePath::fromUserInput);
 }