Preparation for Flint 3

[Joel-Dahne]

Flint 3 is getting closer, an https://groups.google.com/g/flint-devel/c/xc5lFBU9a94 was tagged about a month ago. With this release the Arb package will now be a part of Flint instead of being a separate package. That means that we have to make some minor updates to the package.

The main changes in this PR are:

• Use libflint from FLINT_jll instead of libarb from Arb_jll
• Update the poly structs according to the change in Flint. This is a breaking change in the sense that it changes the order of the memory layout, but is unlikely to matter when coding in Julia.
• Update the parser and reparse the documentation, based on the flint-3.0.0-alpha1 tag of Flint. This adds a few new methods but also removes quite a lot of methods which are now based on generic versions in Flint.

There is still no FLINT_jll for Flint 3 so the tests won't be able to run here. To run it locally you need to build an appropriate version of Flint and then add the line

[FLINT_jll]
libflint_path = "/path/to/flint2/libflint.so"

to the file LocalPreferences.toml at the root of this repository.

Once Flint 3 is release and FLINT_jll is updated we can move forward with this PR.

[kalmarek]

great for taking care of this!

the changes seem to be pretty minimal, given the changes in arb/flint. That's a big plus!

[Joel-Dahne]

Now FLINT_jll has been updated to version 3, which means this PR is ready. However, I want to do some more testing to see if everything works well before merging it.

[Joel-Dahne]

I did some more testing and everything seems to work well! This is then ready for merging after #172

[kalmarek]

@Joel-Dahne You are on a spree :)

[Joel-Dahne]

You are doing a good job in keeping up!

This should be ready to be merged now. Then I have one more thing I want to add, union and intersection for polynomials and midpoint for Acb. After that I think we could be ready for a 1.0 release?

[kalmarek]

I had a look brief look at this (again).
It seems that almost all changes are libarb → libflint rename?
Or is there something else hidden?

[Joel-Dahne]

I had a look brief look at this (again). It seems that almost all changes are libarb → libflint rename? Or is there something else hidden?

That is basically it. The only other main change is the reordering for the poly structs, but that you don't really have to care about from Julia. Then it is just documentation changes and making use of some of the newly added functions in Flint.