Since current cross compilation tests are flaky due to being dependent
on the uploaded artifacts, separate them out into a separate file that
can be approved without hiding other failures in the compile test suite
until they can be more properly fixed.
Do some cleanup and refactoring to abstract out the common parts of the
cross compilation failure tests as well.
TEST=pkg/dartdev
Issue: https://github.com/dart-lang/sdk/issues/61181
Change-Id: I1bee602f6d19ebd175bd27f6aded7a1909d1944f
Cq-Include-Trybots: luci.dart.try:pkg-linux-release-arm64-try,pkg-linux-release-try,pkg-mac-release-arm64-try,pkg-mac-release-try,pkg-win-release-arm64-try,pkg-win-release-try,dart-sdk-linux-riscv64-try,dart-sdk-linux-arm64-try,dart-sdk-linux-try,dart-sdk-mac-try,dart-sdk-win-arm64-try,dart-sdk-win-try,dart-sdk-mac-arm64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/442060
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
Tess Strickland
7da04d0144