[clang] [clang-tools-extra] [Clang] Add a builtin that deduplicate types into a pack (PR #106730)

[Erich Keane via cfe-commits]

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@@ -6414,11 +6410,9 @@ Sema::InstantiateMemInitializers(CXXConstructorDecl *New,
       bool RetainExpansion = false;
       UnsignedOrNone NumExpansions = std::nullopt;
       if (CheckParameterPacksForExpansion(Init->getEllipsisLoc(),
-                                          BaseTL.getSourceRange(),
-                                          Unexpanded,
-                                          TemplateArgs, ShouldExpand,
-                                          RetainExpansion,
-                                          NumExpansions)) {
+                                          BaseTL.getSourceRange(), Unexpanded,
+                                          TemplateArgs, true, ShouldExpand,
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erichkeane wrote:

last time?

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