[clang] [clang][analyzer] Add StreamChecker note tags for "indeterminate stream position". (PR #83288)

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@@ -218,87 +218,6 @@ inline void assertStreamStateOpened(const StreamState *SS) {
   assert(SS->isOpened() && "Stream is expected to be opened");
 }
 
-struct StreamOperationEvaluator {
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NagyDonat wrote:

Why are you moving the definition of this struct? (Feel free to move it if you want, I'm just curious.)

https://github.com/llvm/llvm-project/pull/83288