[llvm] [llvm-cxxfilt] Add --quote option to quote demangled function names (PR #111871)

[Ronan Keryell via llvm-commits]

keryell wrote:

This is a follow-up of https://github.com/llvm/clangir/issues/824 suggested by @bcardosolopes.

https://github.com/llvm/llvm-project/pull/111871