QmlJS find usages: Don't pop up a result window if we don't search.
QmlJS find usages: Don't pop up a result window if we don't search.

Task-number: QTCREATORBUG-4090

richardmg/qtcreator,richardmg/qtcreator,KDE/android-qt-creator,AltarBeastiful/qt-creator,danimo/qt-creator,azat/qtcreator,martyone/sailfish-qtcreator,bakaiadam/collaborative_qt_creator,duythanhphan/qt-creator,danimo/qt-creator,KDE/android-qt-creator,hdweiss/qt-creator-visualizer,darksylinc/qt-creator,kuba1/qtcreator,kuba1/qtcreator,jonnor/qt-creator,jonnor/qt-creator,farseerri/git_code,danimo/qt-creator,KDAB/KDAB-Creator,syntheticpp/qt-creator,hdweiss/qt-creator-visualizer,xianian/qt-creator,bakaiadam/collaborative_qt_creator,darksylinc/qt-creator,pcacjr/qt-creator,martyone/sailfish-qtcreator,bakaiadam/collaborative_qt_creator,martyone/sailfish-qtcreator,richardmg/qtcreator,xianian/qt-creator,xianian/qt-creator,danimo/qt-creator,omniacreator/qtcreator,martyone/sailfish-qtcreator,duythanhphan/qt-creator,kuba1/qtcreator,dmik/qt-creator-os2,darksylinc/qt-creator,xianian/qt-creator,xianian/qt-creator,Distrotech/qtcreator,hdweiss/qt-creator-visualizer,duythanhphan/qt-creator,AltarBeastiful/qt-creator,jonnor/qt-creator,pcacjr/qt-creator,darksylinc/qt-creator,malikcjm/qtcreator,martyone/sailfish-qtcreator,omniacreator/qtcreator,darksylinc/qt-creator,renatofilho/QtCreator,dmik/qt-creator-os2,azat/qtcreator,Distrotech/qtcreator,malikcjm/qtcreator,maui-packages/qt-creator,renatofilho/QtCreator,bakaiadam/collaborative_qt_creator,bakaiadam/collaborative_qt_creator,farseerri/git_code,duythanhphan/qt-creator,AltarBeastiful/qt-creator,KDAB/KDAB-Creator,colede/qtcreator,maui-packages/qt-creator,kuba1/qtcreator,omniacreator/qtcreator,duythanhphan/qt-creator,danimo/qt-creator,maui-packages/qt-creator,syntheticpp/qt-creator,renatofilho/QtCreator,syntheticpp/qt-creator,ostash/qt-creator-i18n-uk,danimo/qt-creator,jonnor/qt-creator,amyvmiwei/qt-creator,Distrotech/qtcreator,dmik/qt-creator-os2,KDE/android-qt-creator,jonnor/qt-creator,ostash/qt-creator-i18n-uk,syntheticpp/qt-creator,maui-packages/qt-creator,amyvmiwei/qt-creator,KDE/android-qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,farseerri/git_code,richardmg/qtcreator,azat/qtcreator,malikcjm/qtcreator,darksylinc/qt-creator,AltarBeastiful/qt-creator,omniacreator/qtcreator,xianian/qt-creator,darksylinc/qt-creator,darksylinc/qt-creator,kuba1/qtcreator,ostash/qt-creator-i18n-uk,farseerri/git_code,farseerri/git_code,amyvmiwei/qt-creator,KDAB/KDAB-Creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,azat/qtcreator,amyvmiwei/qt-creator,colede/qtcreator,colede/qtcreator,danimo/qt-creator,bakaiadam/collaborative_qt_creator,pcacjr/qt-creator,KDAB/KDAB-Creator,duythanhphan/qt-creator,colede/qtcreator,syntheticpp/qt-creator,hdweiss/qt-creator-visualizer,martyone/sailfish-qtcreator,AltarBeastiful/qt-creator,KDE/android-qt-creator,Distrotech/qtcreator,richardmg/qtcreator,xianian/qt-creator,farseerri/git_code,maui-packages/qt-creator,renatofilho/QtCreator,malikcjm/qtcreator,xianian/qt-creator,pcacjr/qt-creator,kuba1/qtcreator,renatofilho/QtCreator,AltarBeastiful/qt-creator,danimo/qt-creator,Distrotech/qtcreator,syntheticpp/qt-creator,kuba1/qtcreator,maui-packages/qt-creator,ostash/qt-creator-i18n-uk,bakaiadam/collaborative_qt_creator,Distrotech/qtcreator,azat/qtcreator,pcacjr/qt-creator,colede/qtcreator,omniacreator/qtcreator,KDE/android-qt-creator,hdweiss/qt-creator-visualizer,malikcjm/qtcreator,richardmg/qtcreator,hdweiss/qt-creator-visualizer,omniacreator/qtcreator,KDAB/KDAB-Creator,pcacjr/qt-creator,maui-packages/qt-creator,colede/qtcreator,dmik/qt-creator-os2,syntheticpp/qt-creator,ostash/qt-creator-i18n-uk,jonnor/qt-creator,dmik/qt-creator-os2,amyvmiwei/qt-creator,kuba1/qtcreator,KDE/android-qt-creator,farseerri/git_code,dmik/qt-creator-os2,KDE/android-qt-creator,ostash/qt-creator-i18n-uk,Distrotech/qtcreator,amyvmiwei/qt-creator,malikcjm/qtcreator,KDAB/KDAB-Creator,richardmg/qtcreator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,xianian/qt-creator,omniacreator/qtcreator,kuba1/qtcreator,azat/qtcreator,colede/qtcreator,amyvmiwei/qt-creator,danimo/qt-creator,ostash/qt-creator-i18n-uk,renatofilho/QtCreator,duythanhphan/qt-creator,farseerri/git_code,malikcjm/qtcreator,dmik/qt-creator-os2,pcacjr/qt-creator