Bump mono.

[rolfbjarne]

New commits in mono/mono:

• mono/mono@16c6ac8 [interp] disable inlining for built-in types (Bump maccore. #14531)
• mono/mono@1ce13bb09d4 [arm] one more attempt to fix slotsize issue on llvmonly (Removal of platform preprocessor blocks in binding definations #14444) ([dotnet] Complete rename of DOTNET to SYSTEM_DOTNET. #14535)
• mono/mono@bb3c9db4976 [2019-02] [monodroid] Introduce 'win32 host' BCL build ([Xtro] Fix xtro runs for classic when performed in a bot that did not build #14504)
• mono/mono@ca17767758c [sdks] Set PATH in Android Windows SDK pipeline job ([devops] Keep dependency selection logic together. #14519)
• mono/mono@1cb80e7ecfc [sdks] Set win-amd64 CI_TAGS for windows pipeline step ([main] Update dependencies from dotnet/installer #14516)
• mono/mono@c857c27d2e5 [2019-02][sdks] Build Android SDK on Windows (Updated Xamarin.Messaging version #14472)
• mono/mono@ab378434b96 [2019-02][ci] Add Android Windows (Release) archive job to pipeline (Remove unnecessary conditional defines from scenekit.cs #14503)
• mono/mono@06c3f553122 [sdks] Lipo arm64_32 binaries for watchOS
• mono/mono@0f69e271534 [sdks] Use -pathmap CSC option for iOS/Mac
• mono/mono@69fae70242e [WinForms] Related Forms closing issue ([maccore] Bump maccore to ease submission tests #13717)
• mono/mono@4fa246df3f9 [2019-02] [WinForms] fix EditingCellFormattedValue getter and setter for bool value (introspection, monotouch-test and don't link Mac Catalyst test suites fail on macOS 11.5 #14437)
• mono/mono@a55d1c93771 [2019-02] TextInfo.ChangeCase should not use CultureInfo.CurrentCulture ([devops] Report if tests on older macOS bots time out. #14438)
• mono/mono@b41578079ec [2019-02] Revert "[System] Add FSEvent FileSystemWatcher to monotouch BCL profile" (Remove unnecessary conditional defines from accounts.cs #14448)
• mono/mono@09429597dcb [metadata] use handle stack in mono_runtime_object_init_handle (Use the interpreter by default for Debug (UseInterpreter=True) #14445)
• mono/mono@77ddc3abc18 [arm64] set MONO_ARCH_HAVE_UNWIND_BACKTRACE for watch4 (Latest update of Microsoft.MacCatalyst.Sdk does not work with Microsoft.Build.CentralPackageVersions #14452)
• mono/mono@f1aa58d9a90 [2019-02] Do not allocate handles in ReleaseMutex. ([tests] Print labels after each MSBuild test when running from the command line. #14428)
• mono/mono@382c836e7fb Mutex memory leak on sgen GC (nursery, major).
• mono/mono@6ab15f25295 Usually do not create a handle in mono_runtime_invoke_handle. ([eventkitui] Add nullability to (generated and manual) bindings #14423)

Diff: https://github.com/mono/mono/compare/7361a4f01c77f0d643f3e4b6d1bc58a7ced9289c..16c6ac81b39bdb26786c2fda155a0a3500961798

[monojenkins]

Build failure
✅ Build succeeded
✅ API Diff (from stable)
🔥 Failed to compare API and create generator diff 🔥
    Failed to update apidiff references
    Search for Comparing API & creating generator diff in the log to view the complete log.
🔥 Test run failed 🔥

Test results

7 tests failed, 0 tests' device not found, 161 tests passed.

Failed tests

• [NUnit] Mono SystemServiceModelWebTests/watchOS - simulator/Debug: Crashed
• [NUnit] Mono SystemIOCompressionFileSystemTests/watchOS - simulator/Debug: Crashed
• [NUnit] Mono SystemServiceModelTests/watchOS - simulator/Debug: Crashed
• [xUnit] Mono SystemSecurityXunit/watchOS - simulator/Debug: Crashed
• monotouch-test/watchOS - simulator/Debug (static registrar): Crashed
• MSBuild tests/iOS: Failed (Execution failed with exit code 1)
• MTouch tests/NUnit: Failed (Execution failed with exit code 1)

[rolfbjarne]

Test failures are unrelated.

• */watchOS: https://github.com/xamarin/maccore/issues/581
• MSBuild tests/iOS: https://github.com/xamarin/maccore/issues/1601
• MTouch tests: https://github.com/xamarin/maccore/issues/1601

[rolfbjarne]

This was included in PR #6040, which has already been merged.