[clang] [clang][NFC] Move isSimpleTypeSpecifier() from Sema to Token (PR #80101)

[Timm Baeder via cfe-commits]

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@@ -13,6 +13,7 @@
 #ifndef LLVM_CLANG_LEX_TOKEN_H
 #define LLVM_CLANG_LEX_TOKEN_H
 
+#include "clang/Basic/LangOptions.h"
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tbaederr wrote:

I think we can get by with a forward-declaration of `LangOptions` instead of the include here?

https://github.com/llvm/llvm-project/pull/80101