[clang] [Clang][Parser] Build up QualifiedTemplateName for typo correction (PR #108148)

[via cfe-commits]

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@@ -3567,7 +3567,10 @@ bool Sema::resolveAssumedTemplateNameAsType(Scope *S, TemplateName &Name,
   if (Corrected && Corrected.getFoundDecl()) {
     diagnoseTypo(Corrected, PDiag(diag::err_no_template_suggest)
                                 << ATN->getDeclName());
-    Name = TemplateName(Corrected.getCorrectionDeclAs<TemplateDecl>());
+    Name = Context.getQualifiedTemplateName(
+        /*NNS=*/nullptr, /*TemplateKeyword=*/false,
+        TemplateName(
+            TemplateName(Corrected.getCorrectionDeclAs<TemplateDecl>())));
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cor3ntin wrote:

Why do we need `TemplateName(TemplateName(` ?

https://github.com/llvm/llvm-project/pull/108148