* Bump for Xcode 10.2 final
* Bump macios-binaries so mlaunch works on 10.14.4
* [appkit] Update for Xcode 10.2 final
* [mps] Update for Xcode 10.2 final
* Bump maccore for swift5 runtime support on older macOS versions
* [AppKit] Ignore deprecated API
* [tests] Don't test QTMovie, it's broken (crashes).
QTKit is deprecated (and has been for 5 years), so just don't test QTMovie.
Fixes these crashes:
apitest:
***** DelegateAndDataSourceAllowsNull
Stacktrace:
at <unknown> <0xffffffff>
at (wrapper managed-to-native) ObjCRuntime.Messaging.IntPtr_objc_msgSend (intptr,intptr) [0x0000a] in <e8e733c9728c43cba731719f096ad306>:0
at QTKit.QTMovie..ctor () [0x00018] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/QTKit/QTMovie.g.cs:330
at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) [0x0004f] in <3ad39e28642b49d2a535a565e6bf6837>:0
at <unknown> <0xffffffff>
at (wrapper managed-to-native) System.Reflection.MonoCMethod.InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&) [0x00016] in <3ad39e28642b49d2a535a565e6bf6837>:0
at System.Reflection.MonoCMethod.InternalInvoke (object,object[],bool) [0x00005] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/MonoMethod.cs:667
at System.Reflection.MonoCMethod.DoInvoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) [0x0007a] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/MonoMethod.cs:657
at System.Reflection.MonoCMethod.Invoke (System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/MonoMethod.cs:689
at System.Reflection.ConstructorInfo.Invoke (object[]) [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/ConstructorInfo.cs:62
at Xamarin.Mac.Tests.DelegateAndDataSourceTest.DelegateAndDataSourceAllowsNull () [0x00110] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/tests/apitest/src/DelegateAndDataSourceTest.cs:65
at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) [0x0004f] in <3ad39e28642b49d2a535a565e6bf6837>:0
at <unknown> <0xffffffff>
at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) [0x00016] in <3ad39e28642b49d2a535a565e6bf6837>:0
at System.Reflection.MonoMethod.Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) [0x0003b] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/MonoMethod.cs:305
at System.Reflection.MethodBase.Invoke (object,object[]) [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/referencesource/mscorlib/system/reflection/methodbase.cs:229
at NUnit.Framework.Internal.Reflect/<>c__DisplayClass9_0.<InvokeMethod>b__0 () [0x00000] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/Internal/Reflect.cs:226
at GuiUnit.InvokerHelper.Invoke () [0x0000e] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/GuiUnit/InvokerHelper.cs:18
at Foundation.NSActionDispatcher.Apply () [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/Foundation/NSAction.cs:62
at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) [0x0004f] in <3ad39e28642b49d2a535a565e6bf6837>:0
at <unknown> <0xffffffff>
at (wrapper managed-to-native) ObjCRuntime.Messaging.void_objc_msgSend (intptr,intptr) [0x0000a] in <e8e733c9728c43cba731719f096ad306>:0
at AppKit.NSApplication.Run () [0x00012] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/AppKit/NSApplication.g.cs:2253
at Xamarin.Mac.Tests.MainClass/NSRunLoopIntegration.RunMainLoop () [0x00001] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/tests/common/mac/MacTestMain.cs:79
at GuiUnit.TestRunner.ExecuteWithListener (string[],NUnitLite.Runner.TcpWriter) [0x0036f] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/GuiUnit/TestRunner.cs:234
at GuiUnit.TestRunner.Execute (string[]) [0x00093] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/GuiUnit/TestRunner.cs:137
at GuiUnit.TestRunner.Main (string[]) [0x00001] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/GuiUnit/TestRunner.cs:71
at Xamarin.Mac.Tests.MainClass.RunTests (string[]) [0x000a9] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/tests/common/mac/MacTestMain.cs:56
at Xamarin.Mac.Tests.MainClass.Main (string[]) [0x00007] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/tests/common/mac/MacTestMain.cs:35
at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) [0x00051] in <4c10f2ab239246ba9514b976defa64c7>:0
Native stacktrace:
0 apitest 0x000000010c40b388 mono_handle_native_crash + 264
1 apitest 0x000000010c388dd6 altstack_handle_and_restore + 70
2 CoreFoundation 0x00007fff3b6f260b CFStringGetCString + 43
3 QTKit 0x00007fff457b6542 __51-[QTKitServerController startUsingServerForObject:]_block_invoke + 1238
4 libdispatch.dylib 0x00007fff67b4e63d _dispatch_client_callout + 8
5 libdispatch.dylib 0x00007fff67b5a129 _dispatch_lane_barrier_sync_invoke_and_complete + 60
6 QTKit 0x00007fff457b5f7a -[QTKitServerController startUsingServerForObject:] + 179
7 QTKit 0x00007fff457ac602 -[QTMovie_QuickTime initWithError:forParent:] + 98
8 QTKit 0x00007fff456f55b9 -[QTMovie initWithError:] + 59
9 apitest 0x000000010c31fbe9 xamarin_dyn_objc_msgSend + 217
10 ??? 0x0000000112791d05 0x0 + 4604894469
11 apitest 0x000000010c41f659 mono_jit_runtime_invoke + 1433
12 apitest 0x000000010c51a4df mono_runtime_invoke_checked + 127
13 apitest 0x000000010c522e70 mono_runtime_try_invoke_array + 1856
14 apitest 0x000000010c4be091 ves_icall_InternalInvoke + 657
15 ??? 0x0000000111abe261 0x0 + 4591444577
16 ??? 0x0000000114249463 0x0 + 4632908899
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================
1 failing types:
QTKit.QTMovie: Object reference not set to an instance of an object
introspection:
***** ApiCtorInitTest.DefaultCtorAllowed
Stacktrace:
at <unknown> <0xffffffff>
at (wrapper managed-to-native) ObjCRuntime.Messaging.IntPtr_objc_msgSend (intptr,intptr) [0x0000a] in <e8e733c9728c43cba731719f096ad306>:0
at QTKit.QTMovie..ctor () [0x00018] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/QTKit/QTMovie.g.cs:330
at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) [0x0004f] in <3ad39e28642b49d2a535a565e6bf6837>:0
at <unknown> <0xffffffff>
at (wrapper managed-to-native) System.Reflection.MonoCMethod.InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&) [0x00016] in <3ad39e28642b49d2a535a565e6bf6837>:0
at System.Reflection.MonoCMethod.InternalInvoke (object,object[],bool) [0x00005] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/MonoMethod.cs:667
at System.Reflection.MonoCMethod.DoInvoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) [0x0007a] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/MonoMethod.cs:657
at System.Reflection.MonoCMethod.Invoke (System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/MonoMethod.cs:689
at System.Reflection.ConstructorInfo.Invoke (object[]) [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/ConstructorInfo.cs:62
at Introspection.ApiCtorInitTest.DefaultCtorAllowed () [0x000f0] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/tests/introspection/ApiCtorInitTest.cs:267
at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) [0x0004f] in <3ad39e28642b49d2a535a565e6bf6837>:0
at <unknown> <0xffffffff>
at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) [0x00016] in <3ad39e28642b49d2a535a565e6bf6837>:0
at System.Reflection.MonoMethod.Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) [0x0003b] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/corlib/System.Reflection/MonoMethod.cs:305
at System.Reflection.MethodBase.Invoke (object,object[]) [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/mcs/class/referencesource/mscorlib/system/reflection/methodbase.cs:229
at NUnit.Framework.Internal.Reflect/<>c__DisplayClass9_0.<InvokeMethod>b__0 () [0x00000] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/Internal/Reflect.cs:226
at GuiUnit.InvokerHelper.Invoke () [0x0000e] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/GuiUnit/InvokerHelper.cs:18
at Foundation.NSActionDispatcher.Apply () [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/Foundation/NSAction.cs:62
at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) [0x0004f] in <3ad39e28642b49d2a535a565e6bf6837>:0
at <unknown> <0xffffffff>
at (wrapper managed-to-native) ObjCRuntime.Messaging.void_objc_msgSend (intptr,intptr) [0x0000a] in <e8e733c9728c43cba731719f096ad306>:0
at AppKit.NSApplication.Run () [0x00012] in /Library/Frameworks/Xamarin.Mac.framework/Versions/5.4.0.70/src/Xamarin.Mac/AppKit/NSApplication.g.cs:2253
at Xamarin.Mac.Tests.MainClass/NSRunLoopIntegration.RunMainLoop () [0x00001] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/tests/common/mac/MacTestMain.cs:79
at GuiUnit.TestRunner.ExecuteWithListener (string[],NUnitLite.Runner.TcpWriter) [0x0036f] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/GuiUnit/TestRunner.cs:234
at GuiUnit.TestRunner.Execute (string[]) [0x00093] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/GuiUnit/TestRunner.cs:137
at GuiUnit.TestRunner.Main (string[]) [0x00001] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/guiunit/src/framework/GuiUnit/TestRunner.cs:71
at Xamarin.Mac.Tests.MainClass.RunTests (string[]) [0x000a9] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/tests/common/mac/MacTestMain.cs:56
at Xamarin.Mac.Tests.MainClass.Main (string[]) [0x00007] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/tests/common/mac/MacTestMain.cs:35
at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) [0x00051] in <83b8b910cba94191a35185713f274e89>:0
Native stacktrace:
0 introspection 0x0000000104e33388 mono_handle_native_crash + 264
1 introspection 0x0000000104db0dd6 altstack_handle_and_restore + 70
2 CoreFoundation 0x00007fff3b6f260b CFStringGetCString + 43
3 QTKit 0x00007fff457b6542 __51-[QTKitServerController startUsingServerForObject:]_block_invoke + 1238
4 libdispatch.dylib 0x00007fff67b4e63d _dispatch_client_callout + 8
5 libdispatch.dylib 0x00007fff67b5a129 _dispatch_lane_barrier_sync_invoke_and_complete + 60
6 QTKit 0x00007fff457b5f7a -[QTKitServerController startUsingServerForObject:] + 179
7 QTKit 0x00007fff457ac602 -[QTMovie_QuickTime initWithError:forParent:] + 98
8 QTKit 0x00007fff456f55b9 -[QTMovie initWithError:] + 59
9 introspection 0x0000000104d47be9 xamarin_dyn_objc_msgSend + 217
10 ??? 0x00000001073f6de5 0x0 + 4416564709
11 introspection 0x0000000104e47659 mono_jit_runtime_invoke + 1433
12 introspection 0x0000000104f424df mono_runtime_invoke_checked + 127
13 introspection 0x0000000104f4ae70 mono_runtime_try_invoke_array + 1856
14 introspection 0x0000000104ee6091 ves_icall_InternalInvoke + 657
15 ??? 0x00000001072bd011 0x0 + 4415279121
16 ??? 0x000000010c993d63 0x0 + 4506336611
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================
[FAIL] Default constructor not allowed for QTKit.QTMovie : Object reference not set to an instance of an object
Since there's no `NSString` or .NET equivalent. This requires a mutable
`CFString` so the new type `CFMutableString` is also added.
* Switch `CFString` base type to `NativeObject` to ease `CFMutableString` implementation;
* Add unit tests for `CFMutableString` both for `CFStringTransform` and some unicode variety to `CFStringAppendCharacters tests` wrt `numChars` being unicode or not (bytes)
Fixes https://github.com/xamarin/xamarin-macios/issues/5705
* [MetalPerformanceShaders] Update bindings from Xcode 9.2 to 10.2 - Part 2 of 2
Fixesxamarin/xamarin-macios#3553
This is the second part of MPS bindings.
Bindings for:
- MPSNeuralNetwork.framework
* Apply some feedback and fix a test case in 10.13
Fixesxamarin/maccore#1389
* More feedback
* Fix ctor test
* Add a Runtime.IsARM64CallingConvention property.
Determining whether we should use the ARM64 calling convention in P/Invokes
gets more complicated with ARM64_32 (which for our purposes is a 32-bit
architecture).
So add a property on the Runtime class to avoid code duplication, and teach
the linker to optimize any calls to this property to a constant value whenever
possible (and the method is marked as optimizable).
Also change our code to use this new property, and make the corresponding
methods optimizable.
Some shuffling in mmp was required, which meant a little bit more code is now
shared between mtouch and mmp.
* Coding style.
* Test tweaks.
* Improve comment.
* Document new optimization
* Move ILReader to shared linker test code location.
* Disable inlining on armv7k.
* Change IsARM64CallingConvention to a read-only field.
We can give the AOT compiler a constant value for a read-only field, so that
the AOT compiler optimizes away the call to the field by using the constant
value.
This commit does not implement this change for the AOT compiler, but using a
read-only field makes it easy to implement it in the future.
Most additions are block-based alternatives to callback API. However,
the way we bind them, it produce identical API so they are ignored.
Fix existing API (where an array was used) and add some tests for it
Fix numerous issues with NSLayoutManager[Delegate]:
* The classes are available in both AppKit and UIKit, but the bindings are
duplicated (unsuccessfully) in both appkit.cs and uikit.cs. So create a new
xkit.cs that is shared between XI and XM, and put a shared version of the
bindings there.
* Bind everything that hasn't already been bound (or deprecated by Apple).
* Methods that take a nullable NSRangePointer has been bound with three overloads:
* A protected overridable (exported) method that uses IntPtr.
* A public method without the parameter.
* A public method with the parameter typed as 'ref NSRange'.
This makes sure the native method can be overridden if needed, while at
the same time making it possible to call without providing the nullable
parameter.
* Fix numerous ugly bindings:
* There's a great nint/nuint confusion for parameters referring to
'character index' and 'glyph index'. XI seems to prefer nuint, while XM
seems to prefer nint. Standardize on nuint, since that's how Apple
created them.
* Many methods have names than sound like Objective-C. Fix them all,
either right away when possible, or for XAMCORE_4_0.
* Several parameter names have been modified to comply with our naming
guidelines (no abbreviations).
Fixes https://github.com/xamarin/xamarin-macios/issues/4740.
All types now have availability annotations for macOS 10.14.4, however
there's no headers (yet?) for ClassKit in the macOS SDK that ships with
Xcode 10.2 beta 1.
The added `SecTrustSetSignedCertificateTimestamps` API existed in older
versions of the OS so I kept the Xcode headers availability (instead of
current SDK version).
* [CoreFoundation, ObjCRuntime] Add DispatchBlock APIs, in particular those that surface QOS
* Make the struct readonly
Co-Authored-By: migueldeicaza <miguel@gnome.org>
* Make the field read-only
Co-Authored-By: migueldeicaza <miguel@gnome.org>
* Add Qos to the list of accepted words
* To add a finalizer that can dispose the object, turn this into a class,
rather than being just a wrapper around the native handle.
* Fix copyright.
* Fix whitespace issues.
* Adjust visibility of existing DispatchBlock method we don't want to make public
* Refactor a bit.
* Make DispatchObject inherit from NativeObject to avoid some code duplication.
* Put all P/Invokes in BlockLiteral.
* Simplify block code somewhat.
* Sprinkle [BindingImpl (Optimizable)] where needed.
* Add both constructors and static Create methods to create DispatchBlocks.
* Add an explicit operator to get an Action delegate from a DispatchBlock, and
an Invoke method to directly call said delegate.
* Add a few convenience API:
* Wait with a TimeSpan overload.
* Cancelled property.
* Notify with an Action overload.
* Add some DispatchQueue overloads to make DispatchBlock actually usable.
* Seal DispatchBlock.
Users shouldn't subclass DispatchBlock.
* Add tests.
* DispatchBlockFlags is native-sized (nuint).
* Fix a few more nint issues.
* Add availability attributes.
* Fix introspection tests.
* Fix xtro.
* Fix xammac tests.
* [xibuild] Add support for /verbose, and use it accordingly.
Also stop using xibuild when it's not needed.
* Use the same verbosity for xibuild as we do for xbuild/msbuild.
Even if 'supportedVideoFormats' is static the type is abstract.
> Important
> ARConfiguration is an abstract base class, so its implementation of
> this property always returns an empty array. Read this property from
> the configuration subclass you plan to use for your AR session, such
> as ARWorldTrackingConfiguration or ARFaceTrackingConfiguration.
https://developer.apple.com/documentation/arkit/arconfiguration/2942261-supportedvideoformats?language=objc
and this behave differently in Objective-C (than .net) as every (static)
method will be different (and not a single implementation like C#).
The existing implementation (as a property) calls `ARConfiguration`
implementation which simply throws a (native) exception
> NSInvalidArgumentException Reason: Supported video formats should be called on individual configuration class
The solution is to obsolete the property (can't be subclassed in .net
since it's static) and add, only on the subclasses, a method that
call the 'supportedVideoFormats' selector on the current (not base)
type.
Added unit test to detect the addition of newer subclasses - since they
will also need to expose this method.
reference: https://github.com/xamarin/xamarin-macios/issues/5347
- ⚠️ Rule deactivated until we have an `xcode10.2` branch where we'll fix the issues.
- We only report `copy` mistakes since they're the ones we really care about fixing (we can end up with invalid pointers).
- Fixes#4018: [xtro] Report incorrect 'ArgumentSemantic' enum value usage
(https://github.com/xamarin/xamarin-macios/issues/4018).
- Performance with the added test:
- Extrospection.SelectorCheck: Elapsed=00:00:00.7263742
- Extrospection.SelectorCheck: Elapsed=00:00:01.2136911
- Extrospection.SelectorCheck: Elapsed=00:00:01.2747602
- Extrospection.SelectorCheck: Elapsed=00:00:01.7494063
* xibuild: New wrapper tool to run msbuild or managed executables
MSBuild supports fallback paths for projects imported using
`$(MSBuildExtensionsPath)`, but these must be specified explicitly in
the app.config of the main executable. There was a PR to allow use of
properties for this in the app.config, but that was not accepted
upstream.
This is required for being able to:
1. build projects with msbuild against the in-tree XI/XM build output
2. and to run nunit tests against the same.
For this we introduce a new tool, `xibuild`, based on XA's `xabuild`.
This supports the fallback paths to be specified via the environment variable
`MSBuildExtensionsPathFallbackPathsOverride`[1].
It essentially operates in 3 modes:
1. `xibuild -c /path/to/foo.exe`
Generates /path/to/foo.exe.config with the fallback paths inserted into that.
2. `xibuild -- /v:diag /path/to/project.csproj`
Runs msbuild with the arguments after `--` with a custom app.config based on
`MSBuild.dll.config`, with the fallback paths correctly inserted.
This is in a temporary file and the original config file is not touched.
3. `xibuild -t -- /path/to/managed_tool.exe args`
Generates `/path/to/managed_tool.exe.config` based on `MSBuild.dll.config` with
the fallback paths inserted, and runs `managed_tool.exe` with the arguments.
The default is to overwrite the config file.
But there is also a switch to merge it with an existing config file.
--
1. Value of the environment variable $MSBuildExtensionsPathFallbackPathsOverride
is prepended to any existing list of search paths in `MSBuild.dll.config`, IOW,
it takes precedence. So, the order of lookup becomes:
- Value of the property `$(MSBuildExtensionsPath)`
- Value of the environment variable `$MSBuildExtensionsPathFallbackPathsOverride`
- /Library/Frameworks/Mono.framework/External/xbuild on macOS
* Integrate use of `xibuild` with the tests
Update all uses of `msbuild` and invocations of tools like nunit that
might depend on using the in-tree builds to use `xibuild`.
* xibuild: Move help descriptions to OptionSet itself.
Vincent Dondain
Sebastien Pouliot
Alex Soto
Rolf Bjarne Kvinge
Curtis Wensley
Chris Hamons
Philippe Creytens
Miguel de Icaza
Ankit Jain
Sebastien Pouliot