[clang] [Clang] Add NormalizedConstraint::dump() (PR #210498)

[Erich Keane via cfe-commits]

https://github.com/erichkeane commented:

This is great, thanks for working on this!  It isn't clear to me exactly what this looks like though... could you post a few examples?  I don't see anything in particular I'm concerned about, but its also hard to figure out what is going on without examples.

https://github.com/llvm/llvm-project/pull/210498