hg: jdk9/sandbox/langtools: Merge

[michael.x.mcmahon at oracle.com]

Changeset: e4284a842052
Author:    michaelm
Date:      2015-09-01 15:56 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/e4284a842052

Merge

- test/tools/javac/TestBootstrapMethodsCount.java
- test/tools/javac/lib/JavacTestingAbstractThreadedTest.java