VSCode chaining arrows

[elfranne]

Chaining arrows removes Syntax highlighting for VSCode.

Editor Name and Version: Microsoft VSCode 1.28.2
Theme: default
Document:

class puppet::editor::syntax{

 class this::is::fine{
   $var = 'this is fine'
 } ->
 class this::is::fine::too{
   $var2 = 'this is fine too'
 }
 -> class this::is::not::fine{
   $var3 = 'this is NOT fine'
 }
}