[clang] [LifetimeSafety] Introduce buildOriginFlowChain for use-after-scope (PR #199345)

[Utkarsh Saxena via cfe-commits]

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@@ -54,14 +54,24 @@ inline bool IsLifetimeSafetyEnabled(Sema &S, const Decl *D) {
   return false;
 }
 
+inline StringRef formatExpr(const Expr *E) {
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usx95 wrote:

This is very much related to formatting in general in https://github.com/llvm/llvm-project/issues/186002.
For the time being I am fine focussing only on DRE. Let's address more as part of that issue.
(no action needed).

https://github.com/llvm/llvm-project/pull/199345