RFR: 8144856 (XS): Fix assert in CompiledStaticCall::set_to_interpreted

[Jamsheed C m]

Hi All,


Summary: Assert code in CompiledStaticCall::set_to_interpreted is fixed. 
Previous implementation did multiple reads for multiple valid state 
check in same assert for the MT safe updates that can happen from other 
threads. This could cause bogus failures as after each read state could 
have changed. As a fix to this, made the code to read the value at once.

Bug:https://bugs.openjdk.java.net/browse/JDK-8144856

webrev: http://cr.openjdk.java.net/~thartmann/8144856/webrev.00/

Testing: jprt hotspot.

Thanks and Best Regards,
Jamsheed