[xharness] Simplify, simplify, simplify.

[rolfbjarne]

Many improvements:

• Remove a lot of legacy code from xharness.
• Simplify the remaining code in xharness significantly, by treating all our various platforms the same way (much fewer special cases)
• Make an NUnit test project for xtro, to avoid having to special-case it in xharness (we can treat it as any other NUnit test project).

[github-actions]

⚠️ Your code has been reformatted. ⚠️

If this is not desired, add the actions-disable-autoformat label, and revert the reformatting commit.

If files unrelated to your change were modified, try reverting the reformatting commit + merging with the target branch (and push those changes).

[github-actions]

⚠️ Your code has been reformatted. ⚠️

If this is not desired, add the actions-disable-autoformat label, and revert the reformatting commit.

If files unrelated to your change were modified, try reverting the reformatting commit + merging with the target branch (and push those changes).

[rolfbjarne]

/azp run xamarin-macios-pr

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[rolfbjarne]

/azp run xamarin-macios-pr,xamarin-macios-apdiff

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[rolfbjarne]

/azp run xamarin-macios-pr,xamarin-macios-pr-apidiff

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[vs-mobiletools-engineering-service2]

✅ [CI Build] Build passed (Detect API changes) ✅

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

✅ [CI Build] Build passed (Build macOS tests) ✅

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

✅ [CI Build] Build passed (Build packages) ✅

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

🔥 Unable to find the contents for the comment: D:\a\1\s\change-detection\results\gh-comment.md does not exist :fire

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build] Tests on macOS M1 - Mac Monterey (12) passed 💻

✅ All tests on macOS M1 - Mac Monterey (12) passed.

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build] Tests on macOS X64 - Mac Sonoma (14) passed 💻

✅ All tests on macOS X64 - Mac Sonoma (14) passed.

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build] Tests on macOS arm64 - Mac Sequoia (15) passed 💻

✅ All tests on macOS arm64 - Mac Sequoia (15) passed.

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build] Tests on macOS M1 - Mac Ventura (13) passed 💻

✅ All tests on macOS M1 - Mac Ventura (13) passed.

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build] Windows Integration Tests passed 💻

✅ All Windows Integration Tests passed.

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]

[vs-mobiletools-engineering-service2]

🚀 [CI Build] Test results 🚀

Test results

✅ All tests passed on VSTS: test results.

🎉 All 107 tests passed 🎉

Tests counts

✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 2 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 4 tests passed. Html Report (VSDrops) Download
✅ generator: All 5 tests passed. Html Report (VSDrops) Download
✅ interdependent-binding-projects: All 4 tests passed. Html Report (VSDrops) Download
✅ introspection: All 4 tests passed. Html Report (VSDrops) Download
✅ linker: All 40 tests passed. Html Report (VSDrops) Download
✅ monotouch (iOS): All 8 tests passed. Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 10 tests passed. Html Report (VSDrops) Download
✅ monotouch (macOS): All 9 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 8 tests passed. Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ xcframework: All 4 tests passed. Html Report (VSDrops) Download
✅ xtro: All 1 tests passed. Html Report (VSDrops) Download

Pipeline on Agent
Hash: afb6b85b56cc3ef461655c4add2bedcbc72e112d [PR build]