private static void EmitMethodEpilogue(TContext context, ILConstruct construct)
        {
            try
            {
                if (construct != null)
                {
                    construct.Evaluate(context.IL);
                }

                context.IL.EmitRet();
            }
            finally
            {
                context.IL.FlushTrace();
            }
        }
 protected override ILConstruct EmitTryFinally(TContext context, ILConstruct tryStatement, ILConstruct finallyStatement)
 {
     return
         (ILConstruct.Instruction(
              "try-finally",
              tryStatement.ContextType,
              false,
              il =>
     {
         il.BeginExceptionBlock();
         tryStatement.Evaluate(il);
         il.BeginFinallyBlock();
         finallyStatement.Evaluate(il);
         il.EndExceptionBlock();
     }
              ));
 }