[Gutter] Rename current references to 'Gutter' -> 'LineNumberGutter'

src/text-editor-element.coffee

@@ -100,7 +100,7 @@ class TextEditorElement extends HTMLElement
       tabLength: 2
       softTabs: true
       mini: @hasAttribute('mini')
-      gutterVisible: not @hasAttribute('gutter-hidden')
+      lineNumberGutterVisible: not @hasAttribute('gutter-hidden')
       placeholderText: @getAttribute('placeholder-text')
     ))
 

src/text-editor-presenter.coffee

@@ -117,7 +117,7 @@ class TextEditorPresenter
       @updateLinesState()
       @updateGutterState()
       @updateLineNumbersState()
-    @disposables.add @model.onDidChangeGutterVisible =>
+    @disposables.add @model.onDidChangeLineNumberGutterVisible =>
       @updateGutterState()
     @disposables.add @model.onDidAddDecoration(@didAddDecoration.bind(this))
     @disposables.add @model.onDidAddCursor(@didAddCursor.bind(this))
@@ -364,7 +364,7 @@ class TextEditorPresenter
     return
 
   updateGutterState: -> @batch "shouldUpdateGutterState", ->
-    @state.gutter.visible = not @model.isMini() and (@model.isGutterVisible() ? true) and @showLineNumbers
+    @state.gutter.visible = not @model.isMini() and (@model.isLineNumberGutterVisible() ? true) and @showLineNumbers
     @state.gutter.maxLineNumberDigits = @model.getLineCount().toString().length
     @state.gutter.backgroundColor = if @gutterBackgroundColor isnt "rgba(0, 0, 0, 0)"
       @gutterBackgroundColor

src/text-editor.coffee

@@ -73,7 +73,7 @@ class TextEditor extends Model
     'autoDecreaseIndentForBufferRow', 'toggleLineCommentForBufferRow', 'toggleLineCommentsForBufferRows',
     toProperty: 'languageMode'
 
-  constructor: ({@softTabs, initialLine, initialColumn, tabLength, softWrapped, @displayBuffer, buffer, registerEditor, suppressCursorCreation, @mini, @placeholderText, @gutterVisible}) ->
+  constructor: ({@softTabs, initialLine, initialColumn, tabLength, softWrapped, @displayBuffer, buffer, registerEditor, suppressCursorCreation, @mini, @placeholderText, @lineNumberGutterVisible}) ->
     super
 
     @emitter = new Emitter
@@ -488,16 +488,16 @@ class TextEditor extends Model
   onDidChangeMini: (callback) ->
     @emitter.on 'did-change-mini', callback
 
-  setGutterVisible: (gutterVisible) ->
-    unless gutterVisible is @gutterVisible
-      @gutterVisible = gutterVisible
-      @emitter.emit 'did-change-gutter-visible', @gutterVisible
-    @gutterVisible
+  setLineNumberGutterVisible: (lineNumberGutterVisible) ->
+    unless lineNumberGutterVisible is @lineNumberGutterVisible
+      @lineNumberGutterVisible = lineNumberGutterVisible
+      @emitter.emit 'did-change-line-number-gutter-visible', @lineNumberGutterVisible
+    @lineNumberGutterVisible
 
-  isGutterVisible: -> @gutterVisible ? true
+  isLineNumberGutterVisible: -> @lineNumberGutterVisible ? true
 
-  onDidChangeGutterVisible: (callback) ->
-    @emitter.on 'did-change-gutter-visible', callback
+  onDidChangeLineNumberGutterVisible: (callback) ->
+    @emitter.on 'did-change-line-number-gutter-visible', callback
 
   # Set the number of characters that can be displayed horizontally in the
   # editor.