==================
pointer_cast
==================

program()
var
  c: ^Char := nil
  p: Pointer := nil

begin
  p := c;
  c := p
end.

---

(source_file
  (program_declaration
    (var_section
      (variable_declaration
        (identifier_definition
          (identifier))
        (pointer_type
          (identifier))
        (literal
          (nil)))
      (variable_declaration
        (identifier_definition
          (identifier))
        (identifier)
        (literal
          (nil))))
    (assignment_statement
      (identifier)
      (identifier))
    (assignment_statement
      (identifier)
      (identifier))))