[clang] [WebKit Checkers] Add alpha.webkit.UnborrowedLocalVarsChecker (PR #225274)

[Ryosuke Niwa via cfe-commits]

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@@ -92,6 +94,97 @@ class RetainPtrSafetyModel : public PtrRefSafetyModel {
   RetainTypeChecker *retainTypeChecker() const override { return &RTC; }
 };
 
+QualType objectType(QualType T) {
+  while (!T.isNull()) {
+    QualType Pointee = T->getPointeeType();
+    if (Pointee.isNull())
+      break;
+    T = Pointee;
+  }
+  return T;
+}
+
+QualType borrowedType(QualType T) {
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rniwa wrote:

These two functions should probably be moved to `PtrTypesSemantics.cpp/h`

https://github.com/llvm/llvm-project/pull/225274