relates to:

• SR-8820 Preference to resolve overload using function with closure taking-as-argument a throwing closure

Issue Description:

The following code fails to compile

public func problem(
    function: () -> Void,
    perform: (() -> Void) -> Void
)
{
    print("non-throwing")
}

public func problem(
    function: () throws -> Void,
    perform: (() throws -> Void) -> Void
)
{
    print("throwing")
}

func identity() -> Void {}

func uhoh() {
    problem(
        function: identity,
        perform: { _ in return () }
    )
}

It seems like it would be reasonable to select the overload of problem(function:perform🙂 which takes a non-throwing function as its first argument since the provided function identity does not in fact throw and the second argument

{ _ in return () }

would be valid for both overloads.