Use type instead of kind

spec/text-editor-spec.js

@@ -6716,7 +6716,7 @@ describe('TextEditor', () => {
         const gutter = editor.addGutter(options)
         expect(editor.getGutters().length).toBe(2)
         expect(editor.getGutters()[1]).toBe(gutter)
-        expect(gutter.kind).toBe('decorated')
+        expect(gutter.type).toBe('decorated')
       })
 
       it('can add a custom line-number gutter', () => {
@@ -6724,12 +6724,12 @@ describe('TextEditor', () => {
         const options = {
           name: 'another-gutter',
           priority: 2,
-          kind: 'line-number'
+          type: 'line-number'
         }
         const gutter = editor.addGutter(options)
         expect(editor.getGutters().length).toBe(2)
         expect(editor.getGutters()[1]).toBe(gutter)
-        expect(gutter.kind).toBe('line-number')
+        expect(gutter.type).toBe('line-number')
       })
 
       it("does not allow a custom gutter with the 'line-number' name.", () => expect(editor.addGutter.bind(editor, {name: 'line-number'})).toThrow())

src/gutter-container.js

@@ -97,7 +97,7 @@ module.exports = class GutterContainer {
 
   // The public interface is Gutter::decorateMarker or TextEditor::decorateMarker.
   addGutterDecoration (gutter, marker, options) {
-    if (gutter.kind === 'line-number') {
+    if (gutter.type === 'line-number') {
       options.type = 'line-number'
     } else {
       options.type = 'gutter'

src/gutter.js

@@ -11,7 +11,7 @@ module.exports = class Gutter {
     this.name = options && options.name
     this.priority = (options && options.priority != null) ? options.priority : DefaultPriority
     this.visible = (options && options.visible != null) ? options.visible : true
-    this.kind = (options && options.kind != null) ? options.kind : 'decorated'
+    this.type = (options && options.type != null) ? options.type : 'decorated'
     this.labelFn = options && options.labelFn
 
     this.emitter = new Emitter()

src/text-editor-component.js

@@ -3099,7 +3099,7 @@ class GutterContainerComponent {
       },
       $.div({style: innerStyle},
         guttersToRender.map((gutter) => {
-          if (gutter.kind === 'line-number') {
+          if (gutter.type === 'line-number') {
             return this.renderLineNumberGutter(gutter)
           } else {
             return $(CustomGutterComponent, {

src/text-editor.js

@@ -258,7 +258,7 @@ class TextEditor {
     this.gutterContainer = new GutterContainer(this)
     this.lineNumberGutter = this.gutterContainer.addGutter({
       name: 'line-number',
-      kind: 'line-number',
+      type: 'line-number',
       priority: 0,
       visible: params.lineNumberGutterVisible
     })