8011009: Use do-while(0) instead of while(0) in EC_TRACE and RC_TRACE* macros
Summary: Improve EC_TRACE and RC_TRACE* to use the do-while(0) trick for statement-like macro
Reviewed-by: sspitsyn, dcubed
roland [Fri, 29 Mar 2013 17:25:27 +0100] rev 16620
8010934: assert failure in c1_LinearScan.cpp: "asumption: non-Constant instructions have only virtual operands"
Summary: incorrect code to skip some ArrayLength instructions in LIRGenerator
Reviewed-by: kvn