Incorrect parsing for incomplete index expression

[scheglov]

When we parse this code, that target is ..publisherIds

void main() {
  FilterSet((builder) => builder..publisherIds[0]);
}

class FilterSet {}

If we remove the index expression, so get a synthetic SimpleIdentifier, the target is the whole closure 😱

void main() {
  FilterSet((builder) => builder..publisherIds[]);
}

class FilterSet {}