[mono][swift-interop] Enable SwiftInvalidCallConv tests on Mono runtime

[matouskozak]

The SwiftInvalidCallConv tests were disabled but are passing locally, let's enable them.

x64 miniJIT CI result:

10:55:52.539 Running test: Interop/Swift/SwiftInvalidCallConv/SwiftInvalidCallConv/SwiftInvalidCallConv.cmd

Return code:      0
Raw output file:      /tmp/helix/working/A38F08F5/w/BA040A13/uploads/Swift/SwiftInvalidCallConv/SwiftInvalidCallConv/output.txt
Raw output:
BEGIN EXECUTION
/tmp/helix/working/A38F08F5/p/corerun -p System.Reflection.Metadata.MetadataUpdater.IsSupported=false -p System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization=true SwiftInvalidCallConv.dll ''
Expected: 100
Actual: 100
END EXECUTION - PASSED
Test Harness Exitcode is : 0
To run the test:
Set up CORE_ROOT and run.
> /private/tmp/helix/working/A38F08F5/w/BA040A13/e/Interop/Interop/../Swift/SwiftInvalidCallConv/SwiftInvalidCallConv/SwiftInvalidCallConv.sh
10:55:52.722 Passed test: Interop/Swift/SwiftInvalidCallConv/SwiftInvalidCallConv/SwiftInvalidCallConv.cmd

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[matouskozak]

I've misread the condition, the tests are actually disabled for CoreCLR not Mono because CoreCLR does return System.Runtime.InteropServices.MarshalDirectiveException instead of System.InvalidProgramException for TestFuncWithNonPrimitiveArg test. I'll close this PR and update the tracking issue #93631