[clang] [clang-tools-extra] [clang] fix location information of CXXConstructorExpr AST node (PR #196092)

[Mariya Podchishchaeva via cfe-commits]

================
@@ -265,3 +265,19 @@ Gaz hn3() {
   // CHECK-MESSAGES: :[[@LINE-1]]:10: warning: avoid repeating the return type
   // CHECK-FIXES: return {x};
 }
+
+
+struct foo {};
+
+struct bar {
+  operator const foo&() const;
+};
+
+foo x() {
+  return bar();
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Fznamznon wrote:

Is my understanding correct that we want to remove a bogus warning with this fix?
clang-tidy is totally not my area and it is kind of hard to derive that the fix results in that. I wonder if we can add a namespace indicating GH issue this patch is fixing and a comment that warnings are not expected here? i.e. wrap everything in namespace gh185044 ? 

https://github.com/llvm/llvm-project/pull/196092