[clang] [clang][Analyzer] Fix error path of builtin overflow (PR #136345)

[Balazs Benics via cfe-commits]

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@@ -194,30 +187,28 @@ void BuiltinFunctionChecker::handleOverflowBuiltin(const CallEvent &Call,
   SVal RetVal = SVB.evalBinOp(State, Op, Arg1, Arg2, ResultType);
 
   auto [Overflow, NotOverflow] = checkOverflow(C, RetValMax, ResultType);
-  if (NotOverflow) {
-    ProgramStateRef StateNoOverflow = State->BindExpr(
-        CE, C.getLocationContext(), SVB.makeTruthVal(false, BoolTy));
+  auto initializeState = [&](bool isOverflow) {
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steakhal wrote:

Llvm style uses UpperCamelCase local variables.

https://github.com/llvm/llvm-project/pull/136345