[dotnet] Always pass -lobjc to the native linker.

[rolfbjarne]

In some cases ld will crash otherwise:

0  0x102a1871c  __assert_rtn + 140
1  0x102a21688  ld::tool::SymbolTableAtom<arm64>::classicOrdinalForProxy(ld::Atom const*) (.cold.3) + 0
2  0x10291daf8  ld::tool::SymbolTableAtom<arm64>::classicOrdinalForProxy(ld::Atom const*) + 248
3  0x10291d15c  ld::tool::SymbolTableAtom<arm64>::addImport(ld::Atom const*, ld::tool::StringPoolAtom*) + 204
4  0x10291c824  ld::tool::SymbolTableAtom<arm64>::encode() + 416
5  0x102907b6c  ___ZN2ld4tool10OutputFile20buildLINKEDITContentERNS_8InternalE_block_invoke.387 + 36
6  0x185df2874  _dispatch_call_block_and_release + 32
7  0x185df4400  _dispatch_client_callout + 20
8  0x185e060c8  _dispatch_root_queue_drain + 956
9  0x185e066c0  _dispatch_worker_thread2 + 164
10  0x185fa0038  _pthread_wqthread + 228
A linker snapshot was created at:
	/tmp/tesrt-2023-08-28-143541.ld-snapshot
ld: Assertion failed: (it != _dylibToOrdinal.end()), function dylibToOrdinal, file OutputFile.cpp, line 5133.

[vs-mobiletools-engineering-service2]

💻 [CI Build] Windows Integration Tests passed 💻

✅ All Windows Integration Tests passed.

Pipeline on Agent
Hash: 1b80efc1b9455b94c2fe5a6cd056524dfe7b7cbe [PR build]

[vs-mobiletools-engineering-service2]

📚 [PR Build] Artifacts 📚

Packages generated

View packages

• xamarin.ios-16.5.0.386.pkg
• xamarin.mac-9.4.0.386.pkg

Pipeline on Agent
Hash: [PR build]

[vs-mobiletools-engineering-service2]

💻 [PR Build] Tests on macOS M1 - Mac Ventura (13.0) passed 💻

✅ All tests on macOS M1 - Mac Ventura (13.0) passed.

Pipeline on Agent
Hash: [PR build]

[vs-mobiletools-engineering-service2]

💻 [PR Build] Tests on macOS M1 - Mac Big Sur (11.5) passed 💻

✅ All tests on macOS M1 - Mac Big Sur (11.5) passed.

Pipeline on Agent
Hash: [PR build]

[vs-mobiletools-engineering-service2]

✅ API diff for current PR / commit

Legacy Xamarin (No breaking changes)

• iOS (no change detected)
• tvOS (no change detected)
• watchOS (no change detected)
• macOS (no change detected)

NET (empty diffs)

• iOS: (empty diff detected)
• tvOS: (empty diff detected)
• MacCatalyst: (empty diff detected)
• macOS: (empty diff detected)

✅ API diff vs stable

Legacy Xamarin (No breaking changes)

• iOS: vsdrops gist (No breaking changes)
• tvOS: vsdrops gist (No breaking changes)
• watchOS: vsdrops gist (No breaking changes)
• macOS: vsdrops gist (No breaking changes)

.NET (No breaking changes)

• iOS: vsdrops gist (No breaking changes)
• tvOS: vsdrops gist (No breaking changes)
• MacCatalyst: vsdrops gist (No breaking changes)
• macOS: vsdrops gist (No breaking changes)
• Microsoft.iOS vs Microsoft.MacCatalyst: vsdrops gist

Legacy Xamarin (stable) vs .NET

• iOS: vsdrops gist
• tvOS: vsdrops gist
• macOS: vsdrops gist

✅ Generator diff

Generator diff is empty

Pipeline on Agent
Hash: 1b80efc1b9455b94c2fe5a6cd056524dfe7b7cbe [PR build]

[vs-mobiletools-engineering-service2]

🔥 [CI Build] Test results 🔥

Test results

❌ Tests failed on VSTS: simulator tests

0 tests crashed, 1 tests failed, 234 tests passed.

Failures

❌ bcl tests

1 tests failed, 68 tests passed.

• [xUnit] Mono Mac OS X BCL tests group 4/Mac Full/Debug: Failed (Test run failed.
  Tests run: 67883 Passed: 67876 Inconclusive: 0 Failed: 1 Ignored: 6)

Html Report (VSDrops) Download

Successes

✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests: All 1 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 7 tests passed. Html Report (VSDrops) Download
✅ framework: All 8 tests passed. Html Report (VSDrops) Download
✅ generator: All 2 tests passed. Html Report (VSDrops) Download
✅ interdependent_binding_projects: All 7 tests passed. Html Report (VSDrops) Download
✅ install_source: All 1 tests passed. Html Report (VSDrops) Download
✅ introspection: All 8 tests passed. Html Report (VSDrops) Download
✅ linker: All 65 tests passed. Html Report (VSDrops) Download
✅ mac_binding_project: All 1 tests passed. Html Report (VSDrops) Download
✅ mmp: All 2 tests passed. Html Report (VSDrops) Download
✅ mononative: All 12 tests passed. Html Report (VSDrops) Download
✅ monotouch: All 35 tests passed. Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ mtouch: All 1 tests passed. Html Report (VSDrops) Download
✅ xammac: All 3 tests passed. Html Report (VSDrops) Download
✅ xcframework: All 8 tests passed. Html Report (VSDrops) Download
✅ xtro: All 2 tests passed. Html Report (VSDrops) Download

Pipeline on Agent
Hash: 1b80efc1b9455b94c2fe5a6cd056524dfe7b7cbe [PR build]

[rolfbjarne]

Test failure is unrelated (https://github.com/xamarin/maccore/issues/2227).