[clang-tools-extra] [clang-doc] fix names of conversions for template parameters (PR #140856)

[Erick Velez via cfe-commits]

https://github.com/evelez7 updated https://github.com/llvm/llvm-project/pull/140856

>From b1a07c3dd19f2aa15abc286fdde0a2cb439dd7b7 Mon Sep 17 00:00:00 2001
From: Erick Velez <erickvelez7 at gmail.com>
Date: Thu, 22 May 2025 17:08:59 -0700
Subject: [PATCH] separate test from code change

---
 clang-tools-extra/clang-doc/Serialize.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/clang-tools-extra/clang-doc/Serialize.cpp b/clang-tools-extra/clang-doc/Serialize.cpp
index 18db427b5239e..fe4ef9c50cc12 100644
--- a/clang-tools-extra/clang-doc/Serialize.cpp
+++ b/clang-tools-extra/clang-doc/Serialize.cpp
@@ -525,7 +525,13 @@ template <typename T>
 static void populateInfo(Info &I, const T *D, const FullComment *C,
                          bool &IsInAnonymousNamespace) {
   I.USR = getUSRForDecl(D);
-  I.Name = D->getNameAsString();
+  if (auto ConversionDecl = dyn_cast_or_null<CXXConversionDecl>(D);
+      ConversionDecl && ConversionDecl->getConversionType()
+                            .getTypePtr()
+                            ->isTemplateTypeParmType())
+    I.Name = "operator " + ConversionDecl->getConversionType().getAsString();
+  else
+    I.Name = D->getNameAsString();
   populateParentNamespaces(I.Namespace, D, IsInAnonymousNamespace);
   if (C) {
     I.Description.emplace_back();