[clang] [analyzer] MallocChecker – Fix false positive leak for smart pointers in temporary objects (PR #152751)

[Ivan Murashko via cfe-commits]

================
@@ -3107,24 +3111,13 @@ void MallocChecker::checkDeadSymbols(SymbolReaper 
&SymReaper,
   C.addTransition(state->set<RegionState>(RS), N);
 }
 
-static QualType canonicalStrip(QualType QT) {
-  return QT.getCanonicalType().getUnqualifiedType();
-}
-
-static bool isInStdNamespace(const DeclContext *DC) {
-  while (DC) {
-    if (const auto *NS = dyn_cast<NamespaceDecl>(DC))
-      if (NS->isStdNamespace())
-        return true;
-    DC = DC->getParent();
-  }
-  return false;
-}
+// Use isWithinStdNamespace from CheckerHelpers.h instead of custom
+// implementation
----------------
ivanmurashko wrote:

I removed the comment - not needed anymore

https://github.com/llvm/llvm-project/pull/152751
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