hg: jdk9/dev/nashorn: 8054503: test/script/external/test262/test/suite/ch12/12.6/12.6.4/12.6.4-2.js fails with tip

[sundararajan.athijegannathan at oracle.com]

Changeset: 5bf075eb3c23
Author:    sundar
Date:      2014-08-11 20:35 +0530
URL:       http://hg.openjdk.java.net/jdk9/dev/nashorn/rev/5bf075eb3c23

8054503: test/script/external/test262/test/suite/ch12/12.6/12.6.4/12.6.4-2.js fails with tip
Reviewed-by: jlaskey, hannesw, attila

! make/project.properties
! src/jdk/nashorn/internal/objects/NativeString.java
! src/jdk/nashorn/internal/runtime/ScriptObject.java
+ test/script/basic/JDK-8054503.js