Merge pull request #76272 from etcwilde/ewilde/6.0.0-std-time-zone-link

[6.0.0🍒][cxx-interop] Do not import `std::chrono::time_zone_link`

Author: shahmishal

lib/ClangImporter/ImportDecl.cpp

@@ -2640,6 +2640,15 @@ namespace {
         return nullptr;
       }
 
+      // Bail if this is `std::chrono::tzdb`. This type causes issues in copy
+      // constructor instantiation.
+      // FIXME: https://github.com/apple/swift/issues/73037
+      if (decl->getDeclContext()->isNamespace() &&
+          decl->getDeclContext()->getParent()->isStdNamespace() &&
+          decl->getIdentifier() &&
+          (decl->getName() == "tzdb" || decl->getName() == "time_zone_link"))
+        return nullptr;
+
       auto &clangSema = Impl.getClangSema();
       // Make Clang define any implicit constructors it may need (copy,
       // default). Make sure we only do this if the class has been fully defined