Add missing anonymous lifetime

diff --git a/compiler/rustc_mir_transform/src/coverage/tests.rs b/compiler/rustc_mir_transform/src/coverage/tests.rs
index 8f2bb11639f18276637f18fe59f1ea5b56419502..fa7f22303a8b50514bfcea5703d22b6b3c59b0c3 100644 (file)
--- a/compiler/rustc_mir_transform/src/coverage/tests.rs
+++ b/compiler/rustc_mir_transform/src/coverage/tests.rs
@@ -169,7 +169,7 @@ fn to_body(self) -> Body<'tcx> {
     }
 }
 
-fn debug_basic_blocks(mir_body: &Body) -> String {
+fn debug_basic_blocks(mir_body: &Body<'_>) -> String {
     format!(
         "{:?}",
         mir_body