private IEnumerable <string> CollectPaths(VsProjectScope projectScope, ProjectItem projectItem)
{
var testPath = GetPath(projectScope, projectItem);
if (testPath != null)
{
yield return(testPath);
}
else
{
foreach (var subItemPath in VsxHelper.GetAllSubProjectItem(projectItem).Select(pi => GetPath(projectScope, pi)).Where(p => p != null))
{
yield return(subItemPath);
}
}
}
