[llvm] [llvm-cxxfilt] Added the option --no-params (PR #75348)

[James Henderson via llvm-commits]

https://github.com/jh7370 requested changes to this pull request.

Please add the new option to the Command Guide documentation.

The behaviour you've implemented doesn't match GNU c++filt's behaviour. The GNU tool produces the following output when used with the input strings you've provided in the test:
```
james at james-VirtualBox:~$ c++filt -p ZN1f2baC2ERKNS_2baIT_EE _ZN2baC2EOT0_
ZN1f2baC2ERKNS_2baIT_EE
ba::ba
```
This is with c++filt version 2.38.

https://github.com/llvm/llvm-project/pull/75348