[clang] [clang][Analysis] Add argument accessors to clang::AnyCall (PR #212934)

[via cfe-commits]

iitianpushkar wrote:

Hey @Xazax-hun , i have refactored the code to make it more concise. Please let me know if you need any changes. Otherwise, can you merge the patch, if it's possible, so that i can work on the follow-up pr too ?

1 CI check is failing due to some infra side error, please re-run it if it's needed.

https://github.com/llvm/llvm-project/pull/212934