Inconsistent formatting between empty block and ProcLiteral

[HertzDevil]

The formatter prefers foo { }, but ->{}; there is no space before and inside the {}. I would prefer if the latter is formatted into -> { }.

The spaces are added when something else is present:

->{}
->{ 1 }
->(x : Int32) {}
->(x : Int32) { 1 }
-> : Int32 {}
-> : Int32 { 1 }

Ideally they should be something like this:

-> { }
-> { 1 }
->(x : Int32) { }
->(x : Int32) { 1 }
-> : Int32 { }
-> : Int32 { 1 }

[straight-shoota]

I don't mind the shortened form. But I'm also okay with adding some white space.

[HertzDevil]

Same goes for do:

->do
end

->(x : Int32) do
end

-> : Int32 do
end

Note that the space in the last example is mandatory because Int32do parses to something else entirely.