'Follow symbol under cursor' does not work for JavaScript functions

1) Open the snake example project and open snake.qml
2) Try to press F2 on function calls like Logic.startNewGame();
-> Does not work

Also, functions both written and called in the same qml file can't be followed.

...
function foo() {
console.log("hey")
}

MouseArea {
  onClicked: {
  // F2 does not work here
  foo()
 }
}
...