Test suite broken on Windows due to CAS

[compnerd]

The CAS changes resulted in the test suite entirely breaking on Windows.

[cachemeifyoucan]

The crash is fixed in PR mentioned above. The remaining error is from clang side for explicit build with message:

error: file 'C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.37.32822\include\module.modulemap' has been modified since the module file 'C:\\Users\\steven\\AppData\\Local\\Temp\\TemporaryDirectory.PtValo\\ModuleCache\SwiftShims-6IUGRKYRXQPGMTRU9CJKMIH9A.pcm' was built: size changed (was 9551, now 10479)