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warning: anonymous parameters are deprecated and will be removed in the next edition
  --> $DIR/issue-89280-emitter-overflow-splice-lines.rs:4:21
   |
LL |       fn test(x: u32, (
   |  _____________________^
LL | |
LL | |
LL | |     )) {}
   | |_____^
   |
   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
   = note: `#[warn(anonymous_parameters)]` on by default
help: try naming the parameter or explicitly ignoring it
   |
LL ~     fn test(x: u32, _: (
LL +
LL +
LL ~     )) {}
   |

warning: 1 warning emitted