[Gutter] Add ::getName to LineNumberGutterComponent

src/line-number-gutter-component.coffee

@@ -6,7 +6,7 @@ module.exports =
 class LineNumberGutterComponent
   dummyLineNumberNode: null
 
-  constructor: ({@onMouseDown, @editor}) ->
+  constructor: ({@onMouseDown, @editor, @name}) ->
     @lineNumberNodesById = {}
 
     @domNode = document.createElement('div')
@@ -18,6 +18,9 @@ class LineNumberGutterComponent
     @domNode.addEventListener 'click', @onClick
     @domNode.addEventListener 'mousedown', @onMouseDown
 
+  getName: ->
+    @name
+
   updateSync: (state) ->
     @newState = state.lineNumberGutter
     @oldState ?= {lineNumbers: {}}