8165681: ClassLoad and ClassPrepare JVMTI events are missed in the start phase
Summary: Add the events bits to the early events bits
Reviewed-by: dholmes, dsamersoff
8165315: [ppc] Port "8133749: NMT detail stack trace cleanup"
Summary: Also add methods to check for slow/fastdebug to Platform.java.
Reviewed-by: simonis, cjplummer, dholmes