Bug 895186. Chunk jsreftest into 6 chunks and crashtest into 3. r=gbrown
Bug 895186. Chunk jsreftest into 6 chunks and crashtest into 3. r=gbrown

kartikgupta0909/gittest,lissyx/build-mozharness,armenzg/build-mozharness,escapewindow/mozharness,armenzg/build-mozharness,lundjordan/mozharness,simar7/build-mozharness,escapewindow/mozharness,mrrrgn/build-mozharness,mozilla/build-mozharness,kartikgupta0909/build-mozharness,lissyx/build-mozharness,kartikgupta0909/build-mozharness,walac/build-mozharness,simar7/build-mozharness,lundjordan/mozharness,mrrrgn/build-mozharness,kartikgupta0909/mozilla-mozharness,kartikgupta0909/gittest,kartikgupta0909/mozilla-mozharness,walac/build-mozharness,mozilla/build-mozharness