Add a note about the necessity to keep BuildEventArgsWriter AND Struc…

…turedLogViewer.BuildEventArgsWriter consistent (#10580)

src/Build/Logging/BinaryLogger/BinaryLogger.cs

@@ -79,6 +79,9 @@ public sealed class BinaryLogger : ILogger
         //    - new record kinds: BuildCheckMessageEvent, BuildCheckWarningEvent, BuildCheckErrorEvent,
         //    BuildCheckTracingEvent, BuildCheckAcquisitionEvent, BuildSubmissionStartedEvent
 
+        // MAKE SURE YOU KEEP BuildEventArgsWriter AND StructuredLogViewer.BuildEventArgsWriter IN SYNC WITH THE CHANGES ABOVE.
+        // Both components must stay in sync to avoid issues with logging or event handling in the products.
+
         // This should be never changed.
         // The minimum version of the binary log reader that can read log of above version.
         internal const int ForwardCompatibilityMinimalVersion = 18;