Fix formatter reordering comments in function type parameters

[robertDurst]

Address #5225 .

Specifically, this PR:

1. ensures that the positions of comments within nested function params are maintained by popping comments per argument rather than collecting all and appending at the end.
2. adds a unit test to reproduce bug and demonstrate it is fixed (with some bonus edge cases).
3. updates expected comment order in the test comment_in_tuple_return_type per conversations in Formatter reoders comments inside function types #5225.

Tried my best to follow of convention. Long term goal here is to hopefully continue finding places to contribute, so nit picks of all sizes appreciated 😁

[robertDurst]

Test fix as per comment in conversation here: #5225 (comment)

[ankddev]

Hey @robertDurst! Could you add a changelog entry (see existing entries for inspiration)?

[robertDurst]

Hey @robertDurst! Could you add a changelog entry (see existing entries for inspiration)?

Done! Thanks for catching this @ankddev ... had the CONTRIBUTING.md open in a tab ... longingly waiting for me to read it 🤦

[robertDurst]

Ok, cleaned up the commit history, should be GTG for an initial review.

Thanks in advance and happy holidays 🥳 🎄