Debugger: Handle some watchpoint failures more gracefully

Change-Id: I09524aa8a3b0256ec0468416bc823353d5b011ea
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Enable mouse input/output navigation in LLDB log window

Change-Id: Idee41c6c2769397d6eee3ab74de4afbb94111e25
Reviewed-by: hjk <hjk121@nokiamail.com>