Improve usability of _mangledTypeName with Any.Type arguments

[ktoso]

Minor follow up to #30318 which introduced _mangledTypeName.

We realized when using it in a real project that invoking it with an Any.Type was not working well since:

57: error: cannot convert value of type 'Any.Type' to expected argument type 'T.Type'

Since the API works on Any.Types anyway, it makes more sense to allow passing in anything.

Please sanity check @milseman @jckarter

[ktoso]

@swift-ci test

[swift-ci]

Build failed
Swift Test Linux Platform
Git Sha - 5faf82c

[ktoso]

Linux failure seems unrelated

13:00:03 <unknown>:0: warning: missing submodule 'CFURLSessionInterface'
13:00:03 
<unknown>:0: error: missing required module 'CFURLSessionInterface'
13:00:03 ninja: build stopped: subcommand failed.

[jckarter]

Yeah, this should be more flexible.

[ktoso]

Thanks 👍

I don't (yet?) have merge powers, will see if I could get them or will ask someone.

[drexin]

@swift-ci test linux

[drexin]

@swift-ci smoke test linux

[ktoso]

Thanks for the help merging @drexin