Assigning functions to properties should work

[ChALkeR]

This is valid QML, but does not get parsed correctly:

import QtQuick 2.6

SomeItem {
  bar: function() {
  }
}

This does work, though:

import QtQuick 2.6

Item {
  property var bar: function() {
  }
}

[ChALkeR]

Related: #15 and 3fea94d53efb48f74062c90e61cf3f60496b7f96 (this is where the second example was fixed).