error: extern items cannot be `const`
  --> $DIR/no-const-fn-in-extern-block.rs:2:5
   |
LL |     const fn foo();
   |     ^^^^^

error: extern items cannot be `const`
  --> $DIR/no-const-fn-in-extern-block.rs:4:5
   |
LL |     const unsafe fn bar();
   |     ^^^^^

error: aborting due to 2 previous errors