`proto foo` isn't highlighted

[zoffixznet]

proto foo is like proto sub foo, but it isn't highlighted

Example Code

proto speed-diff (|) {

}
multi speed-diff (@ ($before, $after) where { [>] |$_ }) {
    "{($before/$after * 100).round: .01}% faster"
}

Picture [optional]

Leave this in. For internal use.

• [ ] Fixed in Master
• [ ] Fixed in Release
• [ ] Has Tests
• [ ] Passes Tests