[clang] [analyzer] Support interestingness in ArrayBoundV2 (PR #78315)

[via cfe-commits]

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@@ -33,7 +33,66 @@ using namespace taint;
 using llvm::formatv;
 
 namespace {
-enum OOB_Kind { OOB_Precedes, OOB_Exceeds, OOB_Taint };
+class StateUpdateReporter {
+  const SubRegion *Reg;
+  NonLoc ByteOffsetVal;
+  std::optional<QualType> ElementType = std::nullopt;
+  std::optional<int64_t> ElementSize = std::nullopt;
+  bool AssumedNonNegative = false;
+  std::optional<NonLoc> AssumedUpperBound = std::nullopt;
+
+public:
+  StateUpdateReporter(const SubRegion *R, NonLoc ByteOffsVal, const Expr *E,
+                      CheckerContext &C)
+      : Reg(R), ByteOffsetVal(ByteOffsVal) {
+    initializeElementInfo(E, C);
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NagyDonat wrote:

How do you use a single call to a global function to initialize two different data members in the init list? (I'm not familiar with this sort of trickery.)

https://github.com/llvm/llvm-project/pull/78315