Whitespace in type annotation should be ignored

[Tetralux]

The following two snippets should be interpreted identically.

x::UInt8
x   ::   UInt8

When you have a function or type constructor which takes lots of arguments, such that you break them up into multiple lines, it is nice to be able to align them. :)

function doit(
        firstarg :: Int
        second   :: UInt
        third    :: Bool
        forth    :: AbstractArray)

   # function body
end

Or, if they are kwargs...

function doit(;
        firstarg ::           Int = -45
        second   ::          UInt = 247
        third    ::          Bool = true
        forth    :: AbstractArray = [])

   # function body
end

[StefanKarpinski]

Do you have an example of a case where these do not parse the same?

[Tetralux]

@StefanKarpinski
Here is an example of what I found it by; though other highlightings exhibit the same trait.

[StefanKarpinski]

Sorry, I thought this was an issue on https://github.com/JuliaLang/julia and was confused. Carry on.

[Tetralux]

@StefanKarpinski I did wonder. 😄

[sglyon]

I think this is a good idea (the goal should always be to match the actual Julia parser), but don't have time to make the changes myself.

I'd be happy to review a PR though... 😉