There used to be a vague error message for enum constants that don't
implement methods from an interface which refers to them as
'Anonymous class deriving from *Enum'. This patch makes the message clear
displaying the real names of the enum constants in the error message.
Signed-off-by: Nikita Eshkeev <nikita.eshkeev@jetbrains.com>
GitOrigin-RevId: 700bc2b579e0c8552858ab881d9a3e4e8d81b1f8
