RFR: 7902450: add option which allows to merge all regions from the same method in perfasm output

[Sergey Kuksenko]

It's passed more than month from the original email.

I assume that everybody agrees and I will push that modification in a 
couple days.

On 4/12/19 4:37 PM, Sergey Kuksenko wrote:
> Hi,
>
> Please review patch:
>
> https://bugs.openjdk.java.net/browse/CODETOOLS-7902450
>
> http://cr.openjdk.java.net/~skuksenko/jmh/7902450/webrev.00/
>
>
>