The current grammar allows VendorExtensionItem / InvalidItem wherever an OriginalScopeTree or GeneratedRangeTree is expected except at the top level, i.e. extension items must always have a parent scope or range. I think we should also allow them at the top level.
The current grammar allows
VendorExtensionItem/InvalidItemwherever anOriginalScopeTreeorGeneratedRangeTreeis expected except at the top level, i.e. extension items must always have a parent scope or range. I think we should also allow them at the top level.