Don't highlight \ at end of line as whitespace
Don't highlight \ at end of line as whitespace

It is not considered a token by the C++ tokenizer, and was hence
considered to be trailing whitespace. Use the highightLine method to
make sure that any non-whitespace characters in this "trailing
whitespace" are not highlighted as such.

Task-number: QTCREATORBUG-987

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