error: usage of `outer_expn().expn_data()`
  --> $DIR/outer_expn_data.rs:23:34
   |
LL |         let _ = expr.span.ctxt().outer_expn().expn_data();
   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `outer_expn_data()`
   |
note: the lint level is defined here
  --> $DIR/outer_expn_data.rs:1:9
   |
LL | #![deny(clippy::internal)]
   |         ^^^^^^^^^^^^^^^^
   = note: `#[deny(clippy::outer_expn_expn_data)]` implied by `#[deny(clippy::internal)]`

error: aborting due to 1 previous error