valast: slice `got` generates want for which some linters show a warning

[fabstu]

See this example:

	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),
		}})},
	}

[]A{A{ could be rewritten as []A{{. I'm not sure whether it s a linter or some other tool but the second A being there shows up as a warning in my code. It would be awesome if that could be avoided. Else I'd have to remote the A on every want-change, because it gets readded there again.

Another option would be to ignore this, but it would be nice if avoiding to write the A would be possible. :-)

The warning:

redundant type from array, slice, or map composite literalsimplifycompositelit

[emidoots]

Thanks for filing this! I'll see if I can fix this soon (maybe around the weekend).

I agree it should be written as []A{{ here, it shouldn't be too hard to get valast to start emitting this style (we already do something similar for e.g. type unqualification in struct fields where a type is not needed.)

[fabstu]

I don't know whether this is more about gofumpt or about valast. I found https://github.com/mvdan/gofumpt/blob/5bfeb2e70dd63f342c452468cca2ee21e180f91c/simplify.go#L105 which comes from cmd/gofmt. I thought the comment there hints that it should be adressed, but I'm uncertain. Thank you!