See discussion on http://dev.clojure.org/jira/browse/CLJS-300
This is a low priority patch for inlining instanceof checks. I don't know if it has any significant performance improvement, but the patch was sort of a side effect of my work on
CLJS-300, so I figured I'd bundle it up and share it here in case someone wants to test it's perf impact and apply if it is a win.
|Field||Original Value||New Value|
|Priority||Minor [ 4 ]||Trivial [ 5 ]|
|Status||Open [ 1 ]||Resolved [ 5 ]|
|Resolution||Completed [ 1 ]|
|Status||Resolved [ 5 ]||Closed [ 6 ]|