[clang] [Clang] FunctionEffects: Make a separate diagnostic group for redeclarations/overrides where effects are implicit. (PR #148690)

[via cfe-commits]

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@@ -707,6 +707,12 @@ Improvements to Clang's diagnostics
 - Improve the diagnostics for placement new expression when const-qualified
   object was passed as the storage argument. (#GH143708)
 
+- Added a separate diagnostic group `-Wfunction-effect-redeclarations``, for the more pedantic
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Sirraide wrote:

```suggestion
- Added a separate diagnostic group ``-Wfunction-effect-redeclarations``, for the more pedantic
```
typo

https://github.com/llvm/llvm-project/pull/148690