add fmt command to format .wast file

[Swrup]

No description provided.

[zapashcanon]

Thanks !

Could you remove test/print/print_text.ml and update test/print/print.t to replace the line: dune exec -- ./print_text.exe m.wast by dune exec owi -- fmt m.wast ?

One other nice thing would be to change test/main.ml. For now it runs the reference test suite (located in test/reference in two mode: a normal mode and a mode where it optimizes code (to make sure it breaks nothing). Could you add a third mode where we parse, then we format and check that everything goes well ? It shouldn't be too hard by simply looking at the test_directory and test_file functions.

[zapashcanon]

Also fix #83.

[zapashcanon]

One more little thing: could you try to check the file extension and if it's .wast then do what you already did (i.e. Parse.Script.from_file and Text.pp_script.

But if it's .wat then, call Parse.Module.from_file and Text.pp_modul instead ?

And if it's none of them, we could either error out or try in script mode anyway. My guess is that we should probably error out but I don't really mind.

[Swrup]

Could you add a third mode where we parse, then we format and check that everything goes well ? It shouldn't be too hard by simply looking at the test_directory and test_file functions.

It's not going well 😩

[zapashcanon]

Thanks!