/// <summary>
/// Creates a closure type for current closure.
/// </summary>
public void CreateClosureType(Context ctx)
{
var id = ctx.GetClosureId();
var closureName = string.Format(EntityNames.ClosureTypeNameTemplate, id);
ClosureTypeId = id;
ClosureType = ctx.CreateType(closureName, isSealed: true, prepare: true);
ClosureType.Kind = TypeEntityKind.Closure;
}