hg: code-tools/jcstress: Basic StringBu* tests.

[aleksey.shipilev at oracle.com]

Changeset: e7361050c369
Author:    shade
Date:      2015-10-20 22:23 +0300
URL:       http://hg.openjdk.java.net/code-tools/jcstress/rev/e7361050c369

Basic StringBu* tests.

! jcstress-core/src/main/java/org/openjdk/jcstress/annotations/Result.java
! jcstress-core/src/main/java/org/openjdk/jcstress/infra/processors/JCStressTestProcessor.java
+ tests-custom/src/main/java/org/openjdk/jcstress/tests/strings/StringBufferTest.java
+ tests-custom/src/main/java/org/openjdk/jcstress/tests/strings/StringBuilderTest.java