error: functions in `extern` blocks cannot have qualifiers
  --> $DIR/no-const-fn-in-extern-block.rs:2:14
   |
LL | extern {
   | ------ in this `extern` block
LL |     const fn foo();
   |     ---------^^^
   |     |
   |     help: remove the qualifiers: `fn`

error: functions in `extern` blocks cannot have qualifiers
  --> $DIR/no-const-fn-in-extern-block.rs:4:21
   |
LL | extern {
   | ------ in this `extern` block
...
LL |     const unsafe fn bar();
   |     ----------------^^^
   |     |
   |     help: remove the qualifiers: `fn`

error: aborting due to 2 previous errors