Assert that frame() derefs a non-null pointer.

Source/core/editing/SpellCheckRequester.h

Index: Source/core/editing/SpellCheckRequester.h
diff --git a/Source/core/editing/SpellCheckRequester.h b/Source/core/editing/SpellCheckRequester.h
index 7ede315b9eca68ea268efbe84b517fd23ab9e4da..67f1ff884689d1c18d7398026cb5b013d4747432 100644
--- a/Source/core/editing/SpellCheckRequester.h
+++ b/Source/core/editing/SpellCheckRequester.h
@@ -117,7 +117,11 @@ private:
     void didCheck(int sequence, const Vector<TextCheckingResult>&);
 
     RawPtrWillBeMember<LocalFrame> m_frame;
-    LocalFrame& frame() const { ASSERT(m_frame); return *m_frame; }
+    LocalFrame& frame() const
+    {
+        ASSERT(m_frame);
+        return *m_frame;
+    }
 
     int m_lastRequestSequence;
     int m_lastProcessedSequence;