message: DefGen::invoke_raw function is unnecessarily public
  Summary: Minor code cleanup.
diff: @@ -498,7 +498,7 @@ impl<'v> StarlarkValue<'v> for Def<'v> {
  }
  impl<'v, V: ValueLike<'v>> DefGen<V> {
  - pub fn invoke_raw(
  + fn invoke_raw(
  &self,
  locals: LocalSlotBase,
  eval: &mut Evaluator<'v, '_>,
  