Rawtypes in JMH and generated classes

[Staffan Friberg]

Hi,

Saw that we got unchecked / rawtypes warnings when compiling benchmarks 
so updated the generator to avoid that.
Since I was already updating this type of warnings I fixed some other 
files as well.

http://cr.openjdk.java.net/~sfriberg/jmh_rawtypes/webrev.00

The main part I'm after is to avoid warnings when compiling the 
microbenchmarks rather than JMH, so would be fine if we limit the patch 
to that.

//Staffan