@0⦊fn c(x: u8) -> u8 {
        if x == 8⦉@0 {
            @1⦊1⦉@1 // This line appears covered, but the 1-character expression span covering the `1`
              // is not executed. (`llvm-cov show` displays a `^0` below the `1` ). This is because
              // `fn j()` executes the open brace for the funciton body, followed by the function's
              // first executable statement, `match x`. Inner function declarations are not
              // "visible" to the MIR for `j()`, so the code region counts all lines between the
              // open brace and the first statement as executed, which is, in a sense, true.
              // `llvm-cov show` overcomes this kind of situation by showing the actual counts
              // of the enclosed coverages, (that is, the `1` expression was not executed, and
              // accurately displays a `0`).
        } else {
            @2⦊0⦉@2
        }
    }@3⦊‸⦉@3