[clang] [analyzer] Implement BugReporterVisitor for UseAfterLifetimeEnd to trace lifetime source binding (PR #207052)

[Benedek Kaibas via cfe-commits]

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@@ -8,12 +8,35 @@ using namespace ento;
 namespace {
 class UseAfterLifetimeEnd : public Checker<check::EndFunction> {
 public:
-  void reportDanglingSource(const MemRegion *Source, ExplodedNode *N,
+  void reportDanglingSource(const MemRegion *Source, SVal Val, ExplodedNode *N,
                             CheckerContext &C) const;
   void checkEndFunction(const ReturnStmt *RS, CheckerContext &C) const;
   const BugType BugMsg{this, "UseAfterLifetimeEnd", "LifetimeBound"};
 };
 
+class UseAfterLifetimeEndBRVisitor : public BugReporterVisitor {
+  SVal BoundVal;
+  const MemRegion *SourceRegion;
+
+public:
+  explicit UseAfterLifetimeEndBRVisitor(SVal Val, const MemRegion *Source)
+      : BoundVal(Val), SourceRegion(Source) {}
+
+  void Profile(llvm::FoldingSetNodeID &ID) const override {
+    static int X = 0;
+    ID.AddPointer(&X);
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benedekaibas wrote:

@Xazax-hun I agree. Also since we have discussed using `trackExpressionValue` for better path notes I think this PR should be merged after #212158.

https://github.com/llvm/llvm-project/pull/207052