[clang] [analyzer] Detect leaks of stack addresses via output params, indirect globals 3/3 (PR #105648)

[Arseniy Zaostrovnykh via cfe-commits]

================
@@ -305,6 +305,14 @@ static const MemSpaceRegion 
*getStackOrGlobalSpaceRegion(const MemRegion *R) {
   return nullptr;
 }
 
+const MemRegion *getOriginBaseRegion(const MemRegion *Referrer) {
+  Referrer = Referrer->getBaseRegion();
+  while (const auto *SymReg = dyn_cast<SymbolicRegion>(Referrer)) {
+    Referrer = SymReg->getSymbol()->getOriginRegion()->getBaseRegion();
+  }
+  return Referrer;
----------------
necto wrote:

renamed in bc41e99d6d34

https://github.com/llvm/llvm-project/pull/105648
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