Adjusted status to include failure in named_pipe_script_test.
Adjusted status to include failure in named_pipe_script_test.

One more failure of the kind described in
https://github.com/dart-lang/sdk/issues/28737 was seen with `$mode ==
product`. This CL adds that mode to the existing status entry.
Change-Id: I073e7b26d7760da1a89d6d2a0ba5ade4b06c64d2
Reviewed-on: https://dart-review.googlesource.com/12443
Reviewed-by: Erik Ernst <251bb01623bfda2cd9151e339a6e783ca432874c@google.com>
Commit-Queue: Erik Ernst <251bb01623bfda2cd9151e339a6e783ca432874c@google.com>

dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk