hg: jdk9/sandbox/nashorn: Merge

[marcus.larsson at oracle.com]

Changeset: e792a7f2172c
Author:    mlarsson
Date:      2015-09-03 13:44 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/nashorn/rev/e792a7f2172c

Merge

- src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/AstSerializer.java
- src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/arrays/InvalidArrayIndexException.java