hg: jdk9/sandbox/langtools: Merge

[erik.joelsson at oracle.com]

Changeset: 64c896a3f765
Author:    erikj
Date:      2015-12-09 13:44 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/64c896a3f765

Merge

- src/jdk.compiler/share/classes/com/sun/tools/javac/file/BaseFileObject.java
- src/jdk.compiler/share/classes/com/sun/tools/javac/file/RegularFileObject.java
- src/jdk.compiler/share/classes/com/sun/tools/javac/file/ZipArchive.java
- src/jdk.compiler/share/classes/com/sun/tools/javac/file/ZipFileIndex.java
- src/jdk.compiler/share/classes/com/sun/tools/javac/file/ZipFileIndexArchive.java
- src/jdk.compiler/share/classes/com/sun/tools/javac/file/ZipFileIndexCache.java
- test/tools/javac/T6705935.java