==================
nix-shell with a bash payload
==================

#!/usr/bin/env nix-shell
#!nix-shell -i bash
echo "hello, world!"
---

(source_file
  (first_line)
  (next_line
    (annotation_line
      (nix_shell_args
        (interpreter
          (sh_arg)))))
  (next_line))

==================
nix-shell with interspersed payload
==================

#!/usr/bin/env nix-shell
echo hello
echo again
#!nix-shell -i bash
echo everybody
---

(source_file
  (first_line)
  (next_line)
  (next_line)
  (next_line
    (annotation_line
      (nix_shell_args
        (interpreter
          (sh_arg)))))
  (next_line))