RFR JDK-8194642: Improve error reporting in hs_error file for JDK8

[Fairoz Matte]

Hi All,

Kindly review the small enhancement for 8u-dev, which is a mini backport of JDK-8136421, only things related to hs_error file improvements were considered.
JBS - https://bugs.openjdk.java.net/browse/JDK-8194642
Webrev - http://cr.openjdk.java.net/~fmatte/8194642/webrev.00/ 

Reference
JDK9 bug - https://bugs.openjdk.java.net/browse/JDK-8136421 
JDK9 changeset -  http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/a41fe5ffa839#l381.1 and http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/a41fe5ffa839#l401.1 

Testing: JPRT no issues found

Thanks,
Fairoz