[Lldb-commits] [lldb] [lldb][DWARFASTParserClang] Added a check for the specialization existence (PR #154123)

[Michael Buch via lldb-commits]

================
@@ -1676,6 +1676,14 @@ TypeSystemClang::CreateClassTemplateSpecializationDecl(
   class_template_specialization_decl->setInstantiationOf(class_template_decl);
   class_template_specialization_decl->setTemplateArgs(
       TemplateArgumentList::CreateCopy(ast, args));
+  void *InsertPos = nullptr;
+  if (!class_template_decl->findSpecialization(args, InsertPos)) {
+    // Add this specialization to the class template.
+    class_template_decl->AddSpecialization(class_template_specialization_decl,
+                                           InsertPos);
+  } else
+    // Specialization exists, so return nullptr.
+    return nullptr;
----------------
Michael137 wrote:

```suggestion
  if (class_template_decl->findSpecialization(args, InsertPos))
    return nullptr;
    
  class_template_decl->AddSpecialization(class_template_specialization_decl,
                                           InsertPos);   
```

https://github.com/llvm/llvm-project/pull/154123