The actual problem here was a wrong use of the recursive
findItem() (instead of a check of the direct children).
That went unnoticed, as the recursive search happens
to find the right child *unless* the iname was empty,
which usually should not happen, but did here, since the
LLDB output was not as well-formed as expected.

Task-number: QTCREATORBUG-14660
Change-Id: I368d92c058354d829aab52c6cc37c7f350223dbe
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>