incompatible Kawa change: symbol vs. java.lang.String

[Per Bothner]

Per Bothner wrote:
> Unfortunately
>   `foo:,(string-append "aa" "b3")
> doesn't work, though it's probably a simple fix.

I checked in a fix so this now works.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/