error: this expression borrows a reference (`&i32`) that is immediately dereferenced by the compiler
  --> $DIR/needless_borrow.rs:14:15
   |
LL |     let c = x(&&a);
   |               ^^^ help: change this to: `&a`
   |
   = note: `-D clippy::needless-borrow` implied by `-D warnings`

error: this expression borrows a reference (`&i32`) that is immediately dereferenced by the compiler
  --> $DIR/needless_borrow.rs:27:15
   |
LL |         46 => &&a,
   |               ^^^ help: change this to: `&a`

error: aborting due to 2 previous errors