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

[via cfe-commits]

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@@ -55,6 +61,11 @@ std::vector<const MemRegion *> lifetime_modeling::getDanglingRegionsAfterReturn(
   return Regions;
 }
 
+bool lifetime_modeling::isDeallocated(ProgramStateRef State,
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isuckatcs wrote:

It is a bit confusing why we have `lifetime_modeling::` and `LifetimeModeling::` definitions in the same source file. I'm still in favor of moving these to different source files to make it less confusing. `LifetimeModelling.cpp` and `LifetimeModellingChecker.cpp` respectively.

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