if_not.coverage

   LL|       |#![feature(coverage_attribute)]
   LL|       |//@ edition: 2021
   LL|       |
   LL|       |#[rustfmt::skip]
   LL|     12|fn if_not(cond: bool) {
   LL|     12|    if
   LL|     12|        !
   LL|     12|        cond
   LL|      4|    {
   LL|      4|        println!("cond was false");
   LL|      8|    }
   LL|       |
   LL|       |    if
   LL|     12|        !
   LL|     12|        cond
   LL|      4|    {
   LL|      4|        println!("cond was false");
   LL|      8|    }
   LL|       |
   LL|       |    if
   LL|     12|        !
   LL|     12|        cond
   LL|      4|    {
   LL|      4|        println!("cond was false");
   LL|      8|    } else {
   LL|      8|        println!("cond was true");
   LL|      8|    }
   LL|     12|}
   LL|       |
   LL|       |#[coverage(off)]
   LL|       |fn main() {
   LL|       |    for _ in 0..8 {
   LL|       |        if_not(std::hint::black_box(true));
   LL|       |    }
   LL|       |    for _ in 0..4 {
   LL|       |        if_not(std::hint::black_box(false));
   LL|       |    }
   LL|       |}