25ffce7e36
If dart.exe is not attached to the console then it should spawn dartvm.exe detached to avoid creating an unnecessary console window. Fixes https://github.com/dart-lang/build/issues/4312 TEST=standalone/io/windows_no_unnecessary_console_test Change-Id: I1de65accca5e28f3cfbe44a70f782525f0059bf0 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/475000 Commit-Queue: Slava Egorov <vegorov@google.com> Reviewed-by: Daco Harkes <dacoharkes@google.com>