Debugger: Enable simple assignments with LLDB

This currently handles top-level frame entries only.

Change-Id: I00291db4eda22e9dae3e493a8f31c7d9bb5420d8
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Re-enable LLDB register contents reporting

Change-Id: I02291db4eda22e9dae3e493a8f31c7d9bb5420d6
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Fix display of QObject based thread names on Windows

Change-Id: I870d28ed3f5a5d013049acb2a94d05b983807228
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: David Schulz <david.schulz@digia.com>