Token missing error on EOF shows confusing message

[v0idpwn]

Environment

• Elixir & Erlang/OTP versions (elixir --version): 1.13.0
• Operating system: Mac OS Big Sur 11.6

Current behavior

When the following snippet is evaluated:

# foo.exs
defmodule Foo do
  :hello

It shows the following error:

** (TokenMissingError) foo.exs:3:1: missing terminator: end (for "do" starting at line 1)
    |
  3 | 
    | ^
    (elixir 1.13.0) lib/code.ex:1183: Code.require_file/2

The tokenizer raises the token missing error when reaching the EOF, then mentioning a line that doesn't exist (file line count + 1, in this case, 3), and the exception displays an empty line.

Expected behavior

Either:

• show a special indicator of EOF in the snippet
• mention in the exception message that the file ended
• mention in the exception message that the file ended & don't show the snippet

[v0idpwn]

Closed per #11466