[llvm] [JSON][NFC] Move print method out of NDEBUG || DUMP (PR #131639)

[Michele Scuttari via llvm-commits]

mscuttari wrote:

> Could you link to the artifacts/perhaps provide more details here about the caller, link error, etc?

Sure, here is a reproducer for the issue that this PR aims to fix: https://gist.github.com/mscuttari/2b69f2bcbc6b0e22527d07eae10ead1e

To reproduce the issue, LLVM needs to be built in Release mode and the project in Debug mode. Of course you also need to specify the `LLVM_DIR` variable for CMake.

The error is the classic undefined reference message, in this case related to the new `print` method (see #129302), which was `ifdef`ed together with the `dump` one.


https://github.com/llvm/llvm-project/pull/131639