[llvm] [offload] add parameterized unit tests (PR #209115)

[via llvm-commits]

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@@ -0,0 +1,263 @@
+#include "Fixtures.hpp"
+#include "OffloadAPI.h"
+
+// Properties are grouped by the data type that stores the information. As
+// queries for selected properties might have different results for either the
+// device or the host, or might be even unsupported for the host, some of the
+// tests verify only whether the function that queried the host returned success
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EuphoricThinking wrote:

I have reworded most of the introduction, let me know if there are any ambiguities still left

https://github.com/llvm/llvm-project/pull/209115