Roc does not generate closure calling functions if they are untyped

[bhansconnect]

modify crates/cli/tests/multiple_exposed/platform/main.roc to this:

platform "multiple_exposed"
    requires {} { exposed1 : I64 -> I64, exposed2 : I64 -> I64, add1 : I64 -> I64, sub1 : I64 -> I64 }
    exposes []
    packages {}
    imports []
    provides [exposedRecord]

# exposedRecord : {
#     func1 : I64 -> I64,
#     func2 : I64 -> I64,
# }
exposedRecord = {
    func1: \a -> exposed1 a |> sub1 |> add1,
    func2: \a -> exposed2 a |> add1 |> sub1,
}

If you run roc build --lib --emit-llvm-ir --optimize crates/cli/tests/multiple_exposed/main.roc,
and open up the generated llvm ir, you can see that no -caller functions are generated.

Uncomment the type definition and run again. Everything generates as expected.

---

Expected behaviour: The functions are generated whether or not the type is specified.

Bonus: Can we get the functions to generate based on the record field name instead of just an index number