E2540 Cannot seal abstract type '%s' (Object Pascal)

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This occurs when declaring an abstract type as sealed.


program E2540;
{E2540 Cannot seal abstract type '%s'}
{$APPTYPE CONSOLE}

uses
  SysUtils,
  classes;

type
  TMyClass = class sealed
    procedure setArea; Virtual; Abstract; //E2540
  end;

begin

end.