[clang] [lldb] [Serialization] Support loading template specializations lazily (PR #119333)

[Jonas Hahnfeld via cfe-commits]

hahnjo wrote:

I believe https://github.com/llvm/llvm-project/commit/30ea0f0ce476bf4c12684a9a514af2ca660bbe44 already addresses the cast. The bots are just slow...

https://github.com/llvm/llvm-project/pull/119333