rust/tests/coverage/if.coverage

   LL|       |#![allow(unused_assignments, unused_variables)]
   LL|       |
   LL|       |#[rustfmt::skip]
   LL|      1|fn main() {
   LL|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
   LL|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
   LL|      1|    // dependent conditions.
   LL|      1|    let
   LL|      1|    is_true
   LL|      1|    =
   LL|      1|        std::env::args().len()
   LL|      1|    ==
   LL|      1|        1
   LL|      1|    ;
   LL|      1|    let
   LL|      1|        mut
   LL|      1|    countdown
   LL|      1|    =
   LL|      1|        0
   LL|      1|    ;
   LL|      1|    if
   LL|      1|        is_true
   LL|      1|    {
   LL|      1|        countdown
   LL|      1|        =
   LL|      1|            10
   LL|      1|        ;
   LL|      1|    }
                   ^0
   LL|      1|}