qmljs: improve handling of default values for AnyLanguage
qmljs: improve handling of default values for AnyLanguage

Change-Id: I97ae24c386a6316b32b8213ab5fc5cb5c6800c65
Reviewed-by: Tim Jenssen <6a21f175c697b4129e1bafb6e9b52078bb1a6738@digia.com>
Reviewed-by: Fawzi Mohamed <7388270c57edd0fabd71d8eb0322d66e3c40e57e@digia.com>

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