redbat/yui3 — comment on commit 4f366cb8b47ab852f69faf6da46bc350bc1afea8
File:  line 0
By lsmith:

It might be safer to `Y.mix(ArrayList.prototype, ArrayListProto);`

This bug (http://yuilibrary.com/projects/yui3/ticket/2530551) has made me reluctant to wholesale assign prototypes rather than mixing properties onto them, since it's preferable to include the constructor in the clobbering prototype.