Add unit tests for new analyzer #6194

Job	Run time
build-solution (Debug, x64)	6m 5s
build-packages	3m 44s
build-solution (Debug, arm64)	6m 8s
build-solution (Release, x64)	7m 55s
build-solution (Release, arm64)	7m 37s
verify-packages	6m 38s
run-tests-win2d	4m 54s
run-tests	7m 3s
run-samples	3m 46s
run-samples-aot (x64)	9m 15s
run-tests-d3d12ma	4m 45s
run-samples-aot (arm64)	7m 8s
publish-nightlies-github	20s
publish-nightlies-azure-devops	29s
	1h 15m 47s

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