Debugger: More LLDB dumper work

QLinkedList, QMap, ...

Change-Id: I4efd7a9d5b7bfd6ffd68dcda824c95dd7a7a52b0
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Fix Q{Size,Rect,Point}F dumpers

They were only showing the integral parts in the
summary line. Duh...

Change-Id: I5efd7a9d5b7bfd6ffd68dcda824c95dd7a7a52b0
Reviewed-by: hjk <hjk121@nokiamail.com>