Javadoc for records

For records:
    use correct "keyword" for type declaration
    `@param` on class (to document components)
    generation of Javadoc for mandated members: constructor, accessors, equals, hashCode etc also private field (for when `-private` is used)
        allow for user overrides
        ensure mandated members are indexed

For sealed types:
    generate `sealed` and `non-sealed` as appropriate
    generating “permitted subtypes” section

For all types:
    if the supertype is sealed, and this type is unsealed, show `non-sealed`

For both:
    update the Class-Use pages
    update doclint to check @param on record types

Test cases:
    for sealed types, ensure implicit permitted subtypes are handled correctly (i.e. in a timely manner for javadoc)
    good @params,
    bad @params: missing, wrong name, duplicate names
    explicitly-defined accessor methods for components and default constructor
    {@inheritDoc} in explicitly-defined accessor methods for components and default constructor