rust/tests/coverage/attr/trait-impl-inherit.coverage

   LL|       |#![feature(coverage_attribute)]
   LL|       |// Checks that `#[coverage(..)]` in a trait method is not inherited in an
   LL|       |// implementation.
   LL|       |//@ edition: 2021
   LL|       |//@ reference: attributes.coverage.trait-impl-inherit
   LL|       |
   LL|       |trait T {
   LL|       |    #[coverage(off)]
   LL|       |    fn f(&self) {
   LL|       |        println!("default");
   LL|       |    }
   LL|       |}
   LL|       |
   LL|       |struct S;
   LL|       |
   LL|       |impl T for S {
   LL|      1|    fn f(&self) {
   LL|      1|        println!("impl S");
   LL|      1|    }
   LL|       |}
   LL|       |
   LL|       |#[coverage(off)]
   LL|       |fn main() {
   LL|       |    S.f();
   LL|       |}