catch-22 with try block, clippy::unit_arg and clippy::unused_unit

[DenialAdams]

If I don't include a () at the end of a let res: Result<(), io::Error> = try block, I get a "passing a unit value to a function" clippy warning. If I do include a (), I get an "unneeded unit expression" clippy warning.

Sample code:

let res: Result<(), io::Error> = try {
   if true {
      some_statement();
   } else {
      some_other_statement();
   }
   //()
};

$ cargo clippy --version
clippy 0.0.212 (3bda548f 2019-02-03)

[flip1995]

This appears to be fixed: Playground