[clang] [analyzer] Implemented the DanglingPtrDeref checker to detect use-after-scope lifetime errors (PR #206460)

[Balázs Benics via cfe-commits]

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@@ -7,37 +7,38 @@
 
 using namespace clang;
 using namespace ento;
+using lifetime_modeling::isBoundToLifetimeSourceSet;
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steakhal wrote:

I figured you would move it inside the function scope. Where it would be easy to see that hah, this is the fn that we call in the next 5 lines. So it's nicely tucked inside that decl context. If you feel strongly about it or you expect more frequent uses of this, it's also fine in this global context.

https://github.com/llvm/llvm-project/pull/206460