Add conservative stack scanning bug found in Chromium

Author: jacob-hughes

softdev.bib

@@ -2995,3 +2995,11 @@ @misc{richards99bench
   url={https://www.cl.cam.ac.uk/~mr10/Bench.html},
   urldate={2023-03-01}
 }
+
+@misc{chromium20cssbug,
+    title = {Issue 1046776: {{base::Optional<T>}} when compiled with clang leads to memory layout that is incompatible with conservative stack scanning},
+    howpublished = {\url{https://bugs.chromium.org/p/chromium/issues/detail?id=1046776}},
+    note = {Accessed: 2023-03-02},
+    year = {2020},
+    author = {Google},
+}