in lib/extract_messages.dart [578:587]
bool looksLikePluralOrGender(Expression expression) {
if (expression is! MethodInvocation) return false;
final node = expression as MethodInvocation;
if (!["plural", "gender", "select"].contains(node.methodName.name)) {
return false;
}
if (!(node.target is SimpleIdentifier)) return false;
SimpleIdentifier target = node.target;
return target.token.toString() == "Intl";
}