[clang] [NFC][clang] change remaining context-dependent type nodes to ContextualFoldingSet (PR #67751)

[Matheus Izvekov via cfe-commits]

mizvekov wrote:

@shafik from the last message, it seemed like this is good to go, but you didn't approve, so I am wondering if you forgot.

https://github.com/llvm/llvm-project/pull/67751