RFR(S): 8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on

[Filipp Zhinkin]

Hi all,

please review fix for JDK-8051344.

Original issue is about misplaced Parse::rtm_deopt call:
it was done between method entry setup and check for bailouts during 
that setup.

As a result, when rtm_deopt was called after bailout it either crashed while
tryingto access start block (which is NULL after Compile::record_failure 
call)
or failed on assert inside Compile::start.

Fix is trivial: rtm_deopt call was placed after bailouts check.

I've also added new test that cause OSR bailout due to non-empty 
interpreter stack.

JBS issue: https://bugs.openjdk.java.net/browse/JDK-8051344
Webrev: http://cr.openjdk.java.net/~fzhinkin/8051344/webrev.00/
Testing: JPRT, manual on host w/ Haswell CPU