RFR (S) : 8073607 : add trace events for inlining

[Igor Ignatyev]

Hi guys,

could you please review the patch which adds trace events for inlining 
for c1/c2 compiler?

An added event provides information about caller, callee, bci, inline 
status and message.

webrev : http://cr.openjdk.java.net/~iignatyev/8073607/webrev.00/
JBS: https://bugs.openjdk.java.net/browse/JDK-8073607
-- 
Igor