compiler crashes if `:erlang.or/2` in guard

[marianoguerra]

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Environment

• Elixir & Erlang/OTP versions (elixir --version):

Erlang/OTP 23 [erts-11.1] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [hipe]
Elixir 1.10.4 (compiled with Erlang/OTP 23)

• Operating system:

Current behavior

The following module crashes the compiler:

defmodule MyMod do
  def fun(a) when :erlang.or(a == 1, a == 2) do
	a
  end
end

Part of the crash:

** (EXIT from #PID<0.95.0>) an exception was raised:
    ** (KeyError) key {:or, 2} not found in: ....
        (elixir 1.10.4) lib/module/types/pattern.ex:579: Module.Types.Pattern.guard_signature

Expected behavior

A compile error saying that the guard is invalid.

Like my previous reports, the code is automatically transpiled from erlang, I don't expect anyone to write this kind of code, just in case the fix may be useful in other cases, feel free to close as invalid :)

[josevalim]

This is fixed (at least of the v1.11.1 release).

[marianoguerra]

great, thanks!