hg: code-tools/jcstress: singletons: add SafeLocal and Synchronized variants.

[aleksey.shipilev at oracle.com]

Changeset: 6162f1945f88
Author:    shade
Date:      2014-09-27 21:46 +0400
URL:       http://hg.openjdk.java.net/code-tools/jcstress/rev/6162f1945f88

singletons: add SafeLocal and Synchronized variants.

! tests-custom/src/main/java/org/openjdk/jcstress/tests/singletons/SafeLocalDCL.java < tests-custom/src/main/java/org/openjdk/jcstress/tests/singletons/SafeDCL.java
! tests-custom/src/main/java/org/openjdk/jcstress/tests/singletons/SynchronizedCL.java < tests-custom/src/main/java/org/openjdk/jcstress/tests/singletons/SafeDCL.java