[clang-tools-extra] [clang-tidy] Fix false positives with template in `misc-unconventional-assign-operator` check (PR #143292)

[via cfe-commits]

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@@ -163,3 +163,16 @@ struct TemplateTypeAlias {
   Alias3<TypeAlias::Alias> &operator=(double) { return *this; }
   // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should return 'TemplateTypeAlias&' [misc-unconventional-assign-operator]
 };
+
+namespace issue143237 {
+template<typename T>
+struct B {
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flovent wrote:

Adjusted in new commit.

https://github.com/llvm/llvm-project/pull/143292