Improve name mangling to avoid collisions

[JulianGCalderon]

The PR #1494 introduces a really simple name-mangling technique to workaround a linker error when executing Cairo tests. This workaround, however, does not ensure that name collisions are imposible.

We should improve the name mangling algorithm to ensure collision are imposible. Checkout:

• https://crates.io/crates/mangling
• https://crates.io/crates/cxx_mangle
• https://itanium-cxx-abi.github.io/cxx-abi/abi.html