RFR 8144051: failing test262parallel run leads to successful build

[Sundararajan Athijegannathan]

Please review http://cr.openjdk.java.net/~sundar/8144051/webrev.00/ for 
https://bugs.openjdk.java.net/browse/JDK-8144051

3 currently failing test262 tests are excluded - see also
* https://bugs.openjdk.java.net/browse/JDK-8144037
* https://bugs.openjdk.java.net/browse/JDK-8134883

Thanks,
-Sundar