[clang] [clang][analyzer] Fix StreamChecker `ftell` and `fgetpos` at indeterminate file position. (PR #84191)

[Ben Shi via cfe-commits]

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@@ -880,6 +883,24 @@ void StreamChecker::preReadWrite(const FnDescription *Desc,
   }
 }
 
+void StreamChecker::preWrite(const FnDescription *Desc, const CallEvent &Call,
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benshi001 wrote:

Why 　we need a separated `preWrite` ? The original `preReadWrite` also works.

https://github.com/llvm/llvm-project/pull/84191