QmlDebugger: Fix connection with older Qt versions
QmlDebugger: Fix connection with older Qt versions

Task-number: QTCREATORBUG-10694
Change-Id: Ib94acfdd00f4e9b44ec5a982f664b8bd982e8eab
Reviewed-by: Aurindam Jana <7c408417cef34be80f3feca6b61197eafaefe98d@digia.com>

amyvmiwei/qt-creator,darksylinc/qt-creator,omniacreator/qtcreator,danimo/qt-creator,omniacreator/qtcreator,darksylinc/qt-creator,kuba1/qtcreator,xianian/qt-creator,Distrotech/qtcreator,kuba1/qtcreator,danimo/qt-creator,amyvmiwei/qt-creator,xianian/qt-creator,AltarBeastiful/qt-creator,farseerri/git_code,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,darksylinc/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,kuba1/qtcreator,xianian/qt-creator,amyvmiwei/qt-creator,AltarBeastiful/qt-creator,kuba1/qtcreator,danimo/qt-creator,farseerri/git_code,kuba1/qtcreator,danimo/qt-creator,Distrotech/qtcreator,omniacreator/qtcreator,colede/qtcreator,martyone/sailfish-qtcreator,kuba1/qtcreator,darksylinc/qt-creator,omniacreator/qtcreator,maui-packages/qt-creator,martyone/sailfish-qtcreator,xianian/qt-creator,danimo/qt-creator,farseerri/git_code,maui-packages/qt-creator,amyvmiwei/qt-creator,xianian/qt-creator,xianian/qt-creator,danimo/qt-creator,Distrotech/qtcreator,martyone/sailfish-qtcreator,AltarBeastiful/qt-creator,xianian/qt-creator,AltarBeastiful/qt-creator,kuba1/qtcreator,farseerri/git_code,farseerri/git_code,Distrotech/qtcreator,danimo/qt-creator,danimo/qt-creator,xianian/qt-creator,darksylinc/qt-creator,darksylinc/qt-creator,martyone/sailfish-qtcreator,Distrotech/qtcreator,farseerri/git_code,colede/qtcreator,maui-packages/qt-creator,darksylinc/qt-creator,AltarBeastiful/qt-creator,maui-packages/qt-creator,amyvmiwei/qt-creator,omniacreator/qtcreator,omniacreator/qtcreator,maui-packages/qt-creator,colede/qtcreator,omniacreator/qtcreator,maui-packages/qt-creator,amyvmiwei/qt-creator,Distrotech/qtcreator,colede/qtcreator,Distrotech/qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,kuba1/qtcreator,AltarBeastiful/qt-creator,farseerri/git_code,maui-packages/qt-creator,colede/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,colede/qtcreator,amyvmiwei/qt-creator,AltarBeastiful/qt-creator,farseerri/git_code,darksylinc/qt-creator,danimo/qt-creator,AltarBeastiful/qt-creator,colede/qtcreator