scylla-gdb: Handle new fair_queue::priority_class_data representation
scylla-gdb: Handle new fair_queue::priority_class_data representation

In the full-duplex capable scheduler the _handles list contains
direct pointers on pclass data, not lw_shared_ptr's.

Most of the time this container is empty so this bug is not
triggerable right at once.

Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@scylladb.com>
Message-Id: <20211116084250.21399-1-c9a32589e048e044184536f7ac71ef92fe82df3e@scylladb.com>

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla