[clang] [Clang][NFC[ Move OffloadArch enum to a generic location (PR #137070)

[Joseph Huber via cfe-commits]

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@@ -0,0 +1,126 @@
+#include "clang/Basic/OffloadArch.h"
+
+#include "llvm/ADT/StringRef.h"
+
+#include <algorithm>
+
+namespace clang {
+
+namespace {
+struct OffloadArchToStringMap {
+  OffloadArch arch;
+  const char *arch_name;
+  const char *virtual_arch_name;
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jhuber6 wrote:

While we're here, can we update these to the LLVM style?
```suggestion
  OffloadArch Arch
  const char *ArchName;
  const char *VirtualArchName;
```

https://github.com/llvm/llvm-project/pull/137070