hg: jdk9/sandbox/langtools: Merge

[pavel.rappo at oracle.com]

Changeset: 008ffc4e23ab
Author:    prappo
Date:      2016-04-19 12:52 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/008ffc4e23ab

Merge

- test/tools/javac/SerialWarn.java
- test/tools/javac/SerialWarn.out
- test/tools/javac/positions/T6253161.java
- test/tools/javac/positions/T6253161.out
- test/tools/javac/positions/T6253161a.java
- test/tools/javac/positions/T6253161a.out
- test/tools/jdeps/jdk.unsupported/Foo.java
- test/tools/jdeps/jdk.unsupported/JDKUnsupportedTest.java