forElement static method
Returns the name that corresponds to element.
If the element is private, the name includes the library URI.
If the name is a setter, the name ends with =.
Implementation
static Name? forElement(Element element) {
  var name = element.lookupName;
  if (name == null) {
    return null;
  }
  if (name.startsWith('_')) {
    var libraryUri = element.library!.uri;
    return Name(libraryUri, name);
  } else {
    return Name(null, name);
  }
}