RFR: 8150084: Convert TraceMonitorMismatch to Unified Logging

[Max Ockner]

Hello,
Please review another Unified Logging conversion.

Bug: https://bugs.openjdk.java.net/browse/JDK-8150084
Webrev: http://cr.openjdk.java.net/~mockner/8150084.01/

TraceMonitorMismatch has been converted to unified logging with 
monitormismatch tag and info level. There is very little output. To 
trigger the output, I ran a program which does a monitorenter without a 
monitorexit.

'java -XX:+TieredCompilation -Xcomp -Xlog:monitormismatch <program>'

Tested with jtreg runtime tests and added MonitorMismatchTest.java to 
test for the output. The test body doesn't run on embedded since it uses 
TieredCompilation.

If you search for TraceMonitorMismatch in the new source, you will find 
a bunch of instances in 
jdk.hotspot.agent/share/classes/sun/jvm/hotspot/oops/GenerateOopMap.java. This 
file is a java implementation of GenerateOopMap.cpp and the two files 
aren't tied together in any way.  This java level TraceMonitorMismatch 
flag is set to true in the code and doesn't get its value from the jvm 
level TraceMonitorMismatch flag. I have left these alone as another 
unfortunate naming coincidence.

Thanks,
Max