RFR (S) 8221325: Add information about swap space to print_memory_info() on MacOS

[Schmelter, Ralf]

Hi Thomas,

the check for the new build/old runtime is theoretically. I just don’t want to dig into the history. So I just check, if the needed amount of data was copied.

For the old build/new runtime I’ve update the webrev: http://cr.openjdk.java.net/~rschmelter/webrevs/8221325/webrev.1/

Best regards,
Ralf