[clang] [clang-tools-extra] [Clang] Add __type_list_dedup builtin to deduplicate types in template arguments (PR #106730)

[Utkarsh Saxena via cfe-commits]

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@@ -38,9 +40,11 @@
 #include "clang/Sema/Template.h"
 #include "clang/Sema/TemplateDeduction.h"
 #include "llvm/ADT/BitVector.h"
+#include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/SmallBitVector.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringExtras.h"
+#include "llvm/Support/raw_ostream.h"
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usx95 wrote:

nit: looks like leftover from debugging.

https://github.com/llvm/llvm-project/pull/106730