Handle punned labelled arguments with type constraint in function applications (ocaml#10434)

[gpetiot]

Update the parser with ocaml/ocaml#10434

Accept labelled argument punning with type constraint in pexp_apply

For example, function application of the form foo ~(x:int) instead of the explicit foo ~x:(x:int).

No diff with test_branch.sh

[nojb]

Hello, naive question: how does ocamlformat handle the dependency on the OCaml version in order to avoid using a syntax that is not understood by "old" OCaml versions (such as the one used by this PR)?

[hhugo]

#633

[nojb]

#633

Thanks!

[nojb]

#633

Thanks!

So do I understand correctly that you cannot use the syntax ~x:(x : ...) together with the next release of ocamlformat unless you are running the version of OCaml that includes that syntax (at the moment, only trunk I think)?

[gpetiot]

I've opened #1759 to take care of this