valast: slice `got` turns to different output than non-slice

[fabstu]

A small example:

A slice got wraps the want-struct on each comma,

	tests := []struct {
		name string
		want autogold.Value
	}{
		{name: "good", want: autogold.Want("good", []A{A{
			A: valast.Addr("abc").(*string),
			B: "def",
			C: valast.Addr(false).(*bool),
			D: valast.Addr(true).(*bool),
		}})},
	}

while a non-slice got does not wrap on every comma

	tests := []struct {
		name string
		want autogold.Value
	}{
		{name: "good", want: autogold.Want("good", A{
			A: valast.Addr("abc").(*string), B: "def", C: valast.Addr(false).(*bool),
			D: valast.Addr(true).(*bool),
		})},
	}

. I think it would be nice for non-slice wants to also wrap them on every comma. I know this is a small thing, so may not be worth it. It may also be more compact to keep it the current way. But I'd love an option to have it both the same output style - the slice-way.

I hope this is something you want input about. I thought I mention it before it is in wider use and more difficult to change. :-)

[emidoots]

Thanks for filing this!

Definitely want consistency here, ultimately this output is produced by https://github.com/hexops/valast in the form of an AST, put onto a single giant line of code, and then passed to https://github.com/mvdan/gofumpt for formatting. But right now gofumpt doesn't yet support formatting very long lines (mvdan/gofumpt#70) so we use a hack to get things broken onto multiple lines: https://github.com/hexops/valast/blob/main/valast.go#L118-L120

I think once mvdan/gofumpt#70 lands in gofumpt this should be improved quite a lot.

[fabstu]

I didn't expect for it to be this complicated. Probably a good idea to use libraries if possible, less work. Thank you!