[feature request] Implement heterogeneous values in arrays as per the >0.5.0 (unreleased) TOML spec

[miccoli]

The working and still unreleased TOML spec allows heterogenous values in arrays: see

• TOML CHANGELOG.md
• TOML README.md
• issue Make arrays heterogeneous toml-lang/toml#665

This is a major improvement that better aligns TOML lists with python ones: I would suggest to implement this feature ahead of the formal release of the new TOML spec.

[alethiophile]

Agree this is a good idea. As best I can tell it should be trivial, just need to take out the explicit checks to forbid it. I'll work on it once I've got a moment.

[miccoli]

Code changes to the python code should be trivial, just a couple of lines to remove. What seems to me more complicated is adapting the unit tests to the new spec.

[alethiophile]

Now implemented in v0.3.0.