Make the bgen tests pass in the path to the attribute library, platform
assembly and all the .NET reference assemblies to bgen. This way we execute
these tests using the .NET version of everything.
* [tests][generator] Port XI/Classic tests to XI/Unified.
* [tests][generator] Comment out code triggering previously unknown bugs.
These tests makes the generator fail:
error BI0000: Unexpected error - Please file a bug report at http://bugzilla.xamarin.com
System.NullReferenceException: Object reference not set to an instance of an object
at Generator.GetSetterExportAttribute (System.Reflection.PropertyInfo pinfo) [0x0002e] in /work/maccore/master/xamarin-macios/src/generator.cs:1981
at Generator.Go () [0x007e3] in /work/maccore/master/xamarin-macios/src/generator.cs:2162
at BindingTouch.Main2 (System.String[] args) [0x010b2] in /work/maccore/master/xamarin-macios/src/btouch.cs:435
at BindingTouch.Main (System.String[] args) [0x0001d] in /work/maccore/master/xamarin-macios/src/btouch.cs:77
at System.Environment.get_StackTrace () [0x00000] in /work/maccore/master/xamarin-macios/_ios-build/Library/Frameworks/Xamarin.iOS.framework/Versions/git/src/mono/mcs/class/corlib/System/Environment.cs:321
at ErrorHelper.ShowInternal (System.Exception e) [0x000dc] in /work/maccore/master/xamarin-macios/src/error.cs:200
at ErrorHelper.Show (System.Exception e) [0x00027] in /work/maccore/master/xamarin-macios/src/error.cs:151
at BindingTouch.Main (System.String[] args) [0x0002b] in /work/maccore/master/xamarin-macios/src/btouch.cs:79
This has been filed as https://bugzilla.xamarin.com/show_bug.cgi?id=52664.
* [tests][generator] Comment out code triggering previously unknown bugs.
This has been filed as https://bugzilla.xamarin.com/show_bug.cgi?id=52665.