RFR(XXS) 8187685: NMT: Tracking compiler memory usage of thread's resource area

[Zhengyu Gu]

Compiler uses resource area for compilation, let's bias it to mtCompiler 
for more accurate memory counting.

Bug: https://bugs.openjdk.java.net/browse/JDK-8187685
Webrev: http://cr.openjdk.java.net/~zgu/8187685/webrev.00/index.html


Discussion thread: 
http://mail.openjdk.java.net/pipermail/hotspot-dev/2017-September/028360.html

Test:

   hotspot_tier1  fastdebug and release on Linux x64.

Thanks,

-Zhengyu