Make opendir test for EINTR again and make NO_RETRY_EXPECTED check in release mode.

BUG=
R=sgjesse@google.com

Review URL: https://codereview.chromium.org//253413002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@35352 260f80e4-7a28-3924-810f-c04153c831b5
4 files changed