[clang] [analyzer] Implemented the DanglingPtrDeref checker to detect use-after-scope lifetime errors (PR #209278)

[Gábor Horváth via cfe-commits]

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@@ -55,6 +61,16 @@ std::vector<const MemRegion *> lifetime_modeling::getDanglingRegionsAfterReturn(
   return Regions;
 }
 
+bool lifetime_modeling::isDeallocated(ProgramStateRef State,
+                                      const MemRegion *Region) {
+  return State->contains<DeallocatedSourceSet>(Region);
+}
+
+bool lifetime_modeling::isBoundToLifetimeSourceSet(ProgramStateRef State,
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Xazax-hun wrote:

This function is now dead, maybe it should be removed in this PR. 

https://github.com/llvm/llvm-project/pull/209278