Naming error when tuple result on lambda has no parens

[reinux]

This might be a mistake that's unique to people coming from OCaml/F#, but:

tasks |> List.map (\t -> t.id, t)

The mistake was in forgetting the brackets on the result tuple (F# doesn't require commas around tuples, as it uses semicolons for list comprehensions instead).

The error I get:

NAMING ERROR - I cannot find a `t` variable:
191|         |> List.map (\t -> t.id, t)
                                      ^

I'm not sure this would be easy to improve, since it can't be helped that the -> operator has higher precedence than ,.