ZGC's current constructor syntax works well with some editors, but not all. There is a wish to move over from the current syntax:

ZClass:ZClass() :
    ZSuper(),
    _member0,
    _member1 {
  // Code
  doit();
}

to the following syntax:

ZClass:ZClass()
  : ZSuper(),
    _member0,
    _member1 {
  // Code
  doit();
}