Right now, application of anonymous function literals in
Macro.to_string/2 is represented like this:
iex> Macro.to_string(quote do: (fn x -> x end).(1))
"fn x -> x end.(1)"
While this is valid, I think it's far more common to have such calls
with the literal fn wrapped in parens:
(fn x -> x end).(1)
This commit makes Macro.to_string/2 behave like this.
Andrea Leopardi
d977e6dd4a