Shouldn't MustBeDocumented annotations be displayed for the classes?
The example below shows annotations for methods and parameters, but not for the class (this is kinda unexpected)

@MustBeDocumented
annotation class Baz

@Baz
class App2 {
    @Baz
    fun withParams(@Baz str1: String, str2: String): Boolean {
        return str1 == str2
    }
}

output HTML: