[clang] [Clang] Disallow explicit object parameters in more contexts (PR #89078)

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https://github.com/cor3ntin commented:

Generally, I like the approach.

Note this PR is related to 
https://github.com/llvm/llvm-project/pull/88974/files

@sdkrystian 

https://github.com/llvm/llvm-project/pull/89078