[clang] [alpha.webkit.webkit.RetainPtrCtorAdoptChecker] Add a new WebKit checker for correct use of RetainPtr, adoptNS, and adoptCF (PR #128679)

[Rashmi Mudduluru via cfe-commits]

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@@ -3760,6 +3760,26 @@ Here are some examples of situations that we warn about as they *might* be poten
       NSObject* unretained = retained.get(); // warn
     }
 
+webkit.RetainPtrCtorAdoptChecker
+""""""""""""""""""""""""""""""""
+The goal of this rule is to make sure the constructor of RetinPtr as well as adoptNS and adoptCF are used correctly.
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t-rasmud wrote:

nit: `RetainPtr`

https://github.com/llvm/llvm-project/pull/128679