[clang] [analyzer][NFC] Use ArrayRef for input parameters (PR #93203)

[Gábor Horváth via cfe-commits]

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@@ -672,7 +672,7 @@ class StdLibraryFunctionsChecker
     StringRef getNote() const { return Note; }
   };
 
-  using ArgTypes = std::vector<std::optional<QualType>>;
+  using ArgTypes = ArrayRef<std::optional<QualType>>;
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Xazax-hun wrote:

I am also wondering if `optional<QualType>` is a smell, since QualType can be null. 

https://github.com/llvm/llvm-project/pull/93203