Add regression test comment

camelid · Mark-Simulacrum · commit 275ad6bef714 · 2022-08-08T17:50:31.000-04:00
diff --git a/src/test/rustdoc/fn-bound.rs b/src/test/rustdoc/fn-bound.rs
@@ -1,3 +1,5 @@
+// Regression test for #100143
+
 use std::iter::Peekable;
 
 pub struct Span<F: Fn(&i32)> {
