[llvm] [TableGen] More efficiency improvements for encode/decode emission. (PR #84647)

[Wang Pengcheng via llvm-commits]

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@@ -17,6 +17,7 @@
 #include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/CodeGenTypes/MachineValueType.h"
+#include "llvm/TableGen/Record.h"
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wangpc-pp wrote:

We don't need forward declarations below now.

https://github.com/llvm/llvm-project/pull/84647