[8u60] approval request for 8086032: Add compiler error tests when syntax extensions are used with --no-syntax-extensions option

[A. Sundararajan]

Please approve.

Bug: https://bugs.openjdk.java.net/browse/JDK-8086032
jdk8u-dev webrev: http://cr.openjdk.java.net/~sundar/8086032/8u60/webrev.00/
jdk9 review thread: 
http://mail.openjdk.java.net/pipermail/nashorn-dev/2015-June/004712.html

Backported "as is" from jdk9-dev without any changes.

Thanks,
-Sundar