[clang] Reapply "[Clang][Sema] Refactor collection of multi-level template argument lists (#106585, #111173)" (PR #111852)

[Haojian Wu via cfe-commits]

hokein wrote:

The module issue caused by #114569, I reported a reproducer in 
https://github.com/llvm/llvm-project/pull/114569#issuecomment-2462556416.

https://github.com/llvm/llvm-project/pull/111852
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