Clang: Offer snippets only for global completion
Clang: Offer snippets only for global completion

Task-number: QTCREATORBUG-14181
Change-Id: Ib9eee53f5398cb13643871d862876f329a2fd9ae
Reviewed-by: Christian Stenger <accbb51712d7b9c4fb108439d01e716148e5f9e6@theqtcompany.com>

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