error: expected identifier, found `<`
  --> $DIR/fn-simple.rs:5:3
   |
LL | fn<T> id(x: T) -> T { x }
   |   ^ expected identifier
   |
help: place the generic parameter name after the fn name
   |
LL - fn<T> id(x: T) -> T { x }
LL + fn id<T>(x: T) -> T { x }
   |

error: aborting due to 1 previous error