Disable JIT.HardwareIntrinsics NotSupported runtime tests on Mono

[safern]

@naricc disabling these tests on Mono as I've seen some failures not related to the issue linked for the coreclr disable section.

cc: @tannergooding

[ghost]

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[safern]

Since the fix for the coreclr test failure is already in PR, I reverted that change and only kept disabling the tests for Mono.

[tannergooding]

@safern, do you have a link to one of the failing tests? It would be good to ensure we have a corresponding issue

[safern]

I think @naricc will follow up on those issues later, not sure what the process is there, but just following what he has been doing for other runtime tests failing on Mono.

This is part of the logs:

+ /tmp/helix/working/985108B8/p/corerun /tmp/helix/working/985108B8/p/xunit.console.dll JIT/HardwareIntrinsics/JIT.HardwareIntrinsics.XUnitWrapper.dll -parallel collections -nocolor -noshadow -xml testResults.xml -trait TestGroup=JIT.HardwareIntrinsics
CLR: Managed code called FailFast, saying "Infinite recursion during resource lookup within System.Private.CoreLib.  This may be a bug in System.Private.CoreLib, or potentially in certain extensibility points such as assembly resolve events or CultureInfo names.  Resource name: Arg_DllNotFoundException"

https://helix.dot.net/api/2019-06-17/jobs/f4125527-3371-4e3c-9661-841c9b5a2b9b/workitems/JIT.HardwareIntrinsics/files/console.430327d5.log

[tannergooding]

Thanks! I'd guess this is one of the cases where mono is hitting an intrinsic they don't implement yet.

[naricc]

It's probably best to just create a new issue for mono with what information you have and link it in the issues.targets as part of this change.

[safern]

@naricc can you take care of that?

[naricc]

@naricc can you take care of that?

Sure, here is the issue: #35906. I can add it to issues.targets after you merge this change.