========
Sections
========

section Test
    variable (A B C : ★);
    hypothesis (x : A) (y : B) (z1 z2 : C);

    section Nested
        def foo (x : A) := y;
    end Nested
end Test

----

    (program
      (section
        (identifier)
        (program
          (variable
            (variable_binding
              (identifier)
              (identifier)
              (identifier)
              (expr
                (app_term
                  (binex
                    (app
                      (term
                        (sort
                          (star)))))))))
          (variable
            (variable_binding
              (identifier)
              (expr
                (app_term
                  (binex
                    (app
                      (term
                        (identifier)))))))
            (variable_binding
              (identifier)
              (expr
                (app_term
                  (binex
                    (app
                      (term
                        (identifier)))))))
            (variable_binding
              (identifier)
              (identifier)
              (expr
                (app_term
                  (binex
                    (app
                      (term
                        (identifier))))))))
          (section
            (identifier)
            (program
              (definition
                (identifier)
                (param_block
                  (identifier)
                  (expr
                    (app_term
                      (binex
                        (app
                          (term
                            (identifier)))))))
                (expr
                  (app_term
                    (binex
                      (app
                        (term
                          (identifier))))))))
            (identifier)))
        (identifier)))