[clang] [clang-tools-extra] [clang-tidy] New performance linter: performance-inefficient-copy-assign (PR #179467)

[via cfe-commits]

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@@ -354,6 +354,7 @@ Clang-Tidy Checks
    :doc:`performance-for-range-copy <performance/for-range-copy>`, "Yes"
    :doc:`performance-implicit-conversion-in-loop <performance/implicit-conversion-in-loop>`,
    :doc:`performance-inefficient-algorithm <performance/inefficient-algorithm>`, "Yes"
+   :doc:`performance-inefficient-copy-assign <performance/inefficient-copy-assign>`, "No"
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EugeneZelenko wrote:

```suggestion
   :doc:`performance-inefficient-copy-assign <performance/inefficient-copy-assign>`,
```

https://github.com/llvm/llvm-project/pull/179467