Tweak various coverage test files for slightly nicer formatting

For coverage tests, splitting code across multiple lines often makes the
resulting coverage report easier to interpret, so we force rustfmt to retain
line breaks by adding dummy line comments with `//`.

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/coverage/inline-dead.rs b/tests/coverage/inline-dead.rs
index 327e68c60bb..4eb397a43fc 100644
--- a/tests/coverage/inline-dead.rs
+++ b/tests/coverage/inline-dead.rs
@@ -13,7 +13,7 @@ fn main() {
 #[inline]
 fn live<const B: bool>() -> u32 {
     if B {
-        dead()
+        dead() //
     } else {
         0
     }