Please review JDK-8049407

[Marcus Lagergren]

Typed Arrays produce different results on big endian and little endian platforms. This is per spec (https://www.khronos.org/registry/typedarray/specs/latest/ <https://www.khronos.org/registry/typedarray/specs/latest/>), however NASHORN-377.js.EXPECTED assumes a little endian system for the output to be the same. 

Added @bigendian and @littleendian test properties and a verification test for both platforms, along with a NASHORN-377 version for big endian systems.

Webrev is at: http://cr.openjdk.java.net/~lagergren/8049407/ <http://cr.openjdk.java.net/~lagergren/8049407/>

/M