[Bug ada/123003] missing warning for unused use clause when use clause for child package is present

[jesper.quorning at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123003

--- Comment #4 from Jesper Quorning <jesper.quorning at gmail dot com> ---
* Building of the following program emits ...