[8u] 8218558: NMT stack traces in output should show mt component for virtual memory allocations

[Zhengyu Gu]

Hi,

I would like to backport this patch to 8u.

It is the counterpart of JDK-8139673, that improves usability of NMT 
detail tracking, by associating every virtual memory allocation site 
with its memory type.

11u patch does not apply cleanly, but conflicts are minors. There are a 
couple of conflicts with copyright years, also a new include file in 11u 
patch that already added in 8u, and indents.

Original bug: https://bugs.openjdk.java.net/browse/JDK-8218558
Original code review thread: 
https://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2019-February/032428.html

8u Webrev: 
http://cr.openjdk.java.net/~zgu/JDK-8218558-8u/webrev.00/index.html


Thanks,

-Zhengyu