[clang] Fix some typos under clang (NFC) (PR #133558)

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@@ -61,7 +61,7 @@ void addCXXDeallocatorChecker(AnalysisASTConsumer &AnalysisConsumer,
 }
 
 // TODO: What we should really be testing here is all the different varieties
-// of delete operators, and wether the retrieval of their arguments works as
+// of delete operators, and weather the retrieval of their arguments works as
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cor3ntin wrote:

whether

https://github.com/llvm/llvm-project/pull/133558