tst_bic: Black-list QDebug::Stream

QDebug::Stream is a private struct only referenced by a pointer. We're
using a version field to be able to add members to it.

Change-Id: Iee35d977c5ea0c25c5e2599eab1062eb69c17589
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>