[llvm] [GVN] Move `ValueTable` out of `GVN.h` (NFC) (PR #226233)

[Momchil Velikov via llvm-commits]

================
@@ -33,6 +33,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Transforms/Scalar/GVNSink.h"
----------------
momchil-velikov wrote:

I think it changed recently (last 4-6 months). It makes sense, it gives an extra degree of assurance that the header can be used standalone. Headers are lexicographically ordered, except for the header with the same name as the source file.

https://github.com/llvm/llvm-project/pull/226233