Could we throw warnings when people alias foreign libs? [cljsjs.d3 :as d3]?

@martinklepsch that might be a good idea, but nothing I want to do until after the modules stuff is done and we can prove it works reasonably well

@mfikes hrm I think that fix for persistent maps with 9 entries may have a pretty bad bug in it

I’m seeing non-deterministic behavior at 9

erg, no seems like a hashing bug ...

argh 🙂

Keyword constructor is lax in taking ns and name as things other than strings