2 files changed, 7 insertions, 2 deletions
diff --git a/compiler/rustc_span/src/hygiene.rs b/compiler/rustc_span/src/hygiene.rs
index e7a8dee27f5..9959e98e3dd 100644
--- a/compiler/rustc_span/src/hygiene.rs
+++ b/compiler/rustc_span/src/hygiene.rs
@@ -1440,7 +1440,8 @@ pub fn decode_syntax_context<D: Decoder, F: FnOnce(&mut D, u32) -> SyntaxContext
                 }
             }
             Entry::Vacant(entry) => {
-                // We are the first thread to start decoding. Mark the current thread as being progress.
+                // We are the first thread to start decoding. Mark the current thread as being
+                // progress.
                 context.local_in_progress.borrow_mut().insert(raw_id);
 
                 // Allocate and store SyntaxContext id *before* calling the decoder function,
diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 47dd80c432e..c6e570e524f 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -131,7 +131,7 @@ symbols! {
         // tidy-alphabetical-end
 
         // Weak keywords, have special meaning only in specific contexts.
-        // Matching predicates: none
+        // Matching predicates: `is_weak`
         // tidy-alphabetical-start
         Auto:               "auto",
         Builtin:            "builtin",
@@ -2725,6 +2725,10 @@ impl Symbol {
             || self.is_unused_keyword_conditional(edition)
     }
 
+    pub fn is_weak(self) -> bool {
+        self >= kw::Auto && self <= kw::Yeet
+    }
+
     /// A keyword or reserved identifier that can be used as a path segment.
     pub fn is_path_segment_keyword(self) -> bool {
         self == kw::Super