RFR(S): 8250750: JDK-8247515 fix for OSX pc_to_symbol() lookup fails with some symbols

[Chris Plummer]

Hello,

Please help review the following:

https://bugs.openjdk.java.net/browse/JDK-8250750
http://cr.openjdk.java.net/~cjplummer/8250750/webrev.00/index.html

Details are in the CR description.

thanks,

Chris