[clang] [clang][StaticAnalyzer] Adding getentropy to CStringChecker. (PR #83675)

[Balazs Benics via cfe-commits]

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@@ -219,6 +221,7 @@ class CStringChecker : public Checker< eval::Call,
   void evalSnprintf(CheckerContext &C, const CallEvent &Call) const;
   void evalSprintfCommon(CheckerContext &C, const CallEvent &Call,
                          bool IsBounded, bool IsBuiltin) const;
+  void evalGetentropy(CheckerContext &C, const CallEvent &Call, CharKind CK) const;
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steakhal wrote:

```suggestion
  void evalGetentropy(CheckerContext &C, const CallEvent &Call) const;
```

https://github.com/llvm/llvm-project/pull/83675