Skip huge array allocation in ARM tests.

This is suspected to cause flaky C++ OOM crash on the build bot.

R=ricow@google.com

Review URL: https://codereview.chromium.org//1124713002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@45518 260f80e4-7a28-3924-810f-c04153c831b5
1 file changed