[clang] [CUDA][HIP] check dtor in deferred diag (PR #129117)

[Artem Belevich via cfe-commits]

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@@ -1798,6 +1798,62 @@ class DeferredDiagnosticsEmitter
       Inherited::visitUsedDecl(Loc, D);
   }
 
+  // Visitor member and parent dtors called by this dtor.
+  void VisitCalledDestructors(CXXDestructorDecl *DD) {
+    const CXXRecordDecl *RD = DD->getParent();
+
+    // Visit the dtors of all members
+    for (const FieldDecl *FD : RD->fields()) {
+      QualType FT = FD->getType();
+      if (const auto *RT = FT->getAs<RecordType>()) {
+        if (const auto *ClassDecl = dyn_cast<CXXRecordDecl>(RT->getDecl())) {
+          if (ClassDecl->hasDefinition()) {
+            if (CXXDestructorDecl *MemberDtor = ClassDecl->getDestructor()) {
+              asImpl().visitUsedDecl(MemberDtor->getLocation(), MemberDtor);
+            }
+          }
+        }
+      }
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Artem-B wrote:

These do not need `{}`. We do not have any else clauses here, so even with deep nesting it would work fine.

https://github.com/llvm/llvm-project/pull/129117