Added System.TestStructs.dll to the list of excluded assemblies in CORE_ROOT

[briansull]

No description provided.

[ericstj]

This won't be the only dependency from that assembly. It also uses Xunit (xunit.core.dll, xunit.assert.dll). I'll have a different PR to fix this.

[ericstj]

#49067

[briansull]

/azp run runtime-coreclr r2r-extra

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[BruceForstall]

btw, this problem affects all R2R coreclr test runs, including our top-level CI "outerloop" job : https://dev.azure.com/dnceng/public/_build?definitionId=655&_a=summary

[ericstj]

@BruceForstall please see #49067 which may be the better fix. Also would help to have others comment on discussion here: #48858

[briansull]

This change is inherently safe as it just adds the name System.TestStructs.dll to the list of assemblies that we don't try to compile. It doesn't matter if that assembly it exists or doesn't exist.

Your change talks about not binplacing another assembly: DependencyInjection.Specification.Tests

[ericstj]

True, but I don’t think that’s the problem that broke the build. I believe the build was broken due to this assembly being absent. I fixed that by removing the assembly that references this one from the build directory being crossgen’ed.

[briansull]

Closing this PR