Patch coming.
<rdar://problem/38008021>
Created attachment 334790 [details] proposed patch.
Comment on attachment 334790 [details] proposed patch. Removing the r?. We probably won't need these instrumentation again until we have to debug the LLInt with all its macros. If we encounter this need again, we can consider applying this patch then. For now, since no one has needed this yet, we can just hold off on reviewing and landing this patch.