Request for review (S): JDK-8011009: Use do-while(0) instead of while(0) in EC_TRACE and RC_TRACE* macros

[Krystal Mo]

Hi all,

Could I have a review for this small patch, please?

Webrev: http://cr.openjdk.java.net/~kmo/8011009/webrev.00
CR: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8011009

This patch improves the EC_TRACE and RC_TRACE* family of macros to be 
less error prone.
They used to end with while(0) to make the macros statement-like, but a 
better way to do this is do {...} while(0).

Testing with JPRT, will send an update email when it's done.

P.S. I'm not sure where I should send this email for review, should it 
be hotspot-runtime or serviceability?

Thanks,
Kris