LLDB: Fix that locals didn't show up anymore
LLDB: Fix that locals didn't show up anymore

Broke with aa39916c4101a3f98d81cd5c447c57b703e6dbcd
It was missing a @ marker to separate mirrored messages from actual
data.

Change-Id: Ie142055181de4fada15060108a6ba2166591012e
Reviewed-by: hjk <4622a3e4640ee19ab4ebad197849e45b7170d50c@theqtcompany.com>

martyone/sailfish-qtcreator,xianian/qt-creator,danimo/qt-creator,Distrotech/qtcreator,xianian/qt-creator,Distrotech/qtcreator,danimo/qt-creator,kuba1/qtcreator,kuba1/qtcreator,danimo/qt-creator,xianian/qt-creator,xianian/qt-creator,xianian/qt-creator,Distrotech/qtcreator,martyone/sailfish-qtcreator,kuba1/qtcreator,kuba1/qtcreator,martyone/sailfish-qtcreator,Distrotech/qtcreator,danimo/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,danimo/qt-creator,danimo/qt-creator,kuba1/qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,kuba1/qtcreator,xianian/qt-creator,xianian/qt-creator,Distrotech/qtcreator,danimo/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,danimo/qt-creator,kuba1/qtcreator,danimo/qt-creator,Distrotech/qtcreator,xianian/qt-creator,Distrotech/qtcreator