From b142ed296c2b1c4508cc62224e9ff154c03be08f Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <n.nethercote@gmail.com>
Date: Mon, 20 Nov 2023 16:11:06 +1100
Subject: [PATCH] Add a comment.

---
 compiler/rustc_hir/src/def.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler/rustc_hir/src/def.rs b/compiler/rustc_hir/src/def.rs
index ed1dc751fba..1c046269781 100644
--- a/compiler/rustc_hir/src/def.rs
+++ b/compiler/rustc_hir/src/def.rs
@@ -591,6 +591,8 @@ impl NonMacroAttrKind {
         }
     }
 
+    // Currently trivial, but exists in case a new kind is added in the future whose name starts
+    // with a vowel.
     pub fn article(self) -> &'static str {
         "a"
     }