comment added

Hello, it seems that this bug isn't very clear from the documentation or the GHC web page, can we be honest and update

 http://haskell.org/ghc/

where it says "Profiling is supported, both by time/allocation and various kinds of heap profiling."

to say "Profiling is supported, both by time/allocation and various kinds of heap profiling, provided you do not use threads."?

Thank you.