[currywurst]

I'm still tippy-toeing in the Haskell waters .. but the availability of seemingly mature "elbow-grease" tools like profilers, debuggers and code coverage evaluators is what attracts me to Haskell.

What is the state of the art for the new kids on the block like Clojure, Scala and Go ?

[fiatmoney]

Clojure, at least, can use most of the Java profiling & debugging tools. Under the hood, the class names shown get a little baroque but it's still recognizably relatable to the source.

[dmaz]

Go can be debugged with gdb > 7.1 and is profiled with pprof.