Fix codefolding

Author: jasonLaster

src/utils/editor/create-editor.js

@@ -5,19 +5,19 @@
 // @flow
 
 import SourceEditor from "./source-editor";
-import { isEnabled } from "devtools-config";
+import { features } from "../prefs";
 
 export function createEditor() {
   const gutters = ["breakpoints", "hit-markers", "CodeMirror-linenumbers"];
 
-  if (isEnabled("codeFolding")) {
+  if (features.codeFolding) {
     gutters.push("CodeMirror-foldgutter");
   }
 
   return new SourceEditor({
     mode: "javascript",
-    foldGutter: isEnabled("codeFolding"),
-    enableCodeFolding: isEnabled("codeFolding"),
+    foldGutter: features.codeFolding,
+    enableCodeFolding: features.codeFolding,
     readOnly: true,
     lineNumbers: true,
     theme: "mozilla",

src/utils/prefs.js

@@ -45,7 +45,7 @@ if (isDevelopment()) {
   pref("devtools.debugger.features.remove-command-bar-options", true);
   pref("devtools.debugger.features.code-coverage", false);
   pref("devtools.debugger.features.event-listeners", false);
-  pref("devtools.debugger.features.code-folding", true);
+  pref("devtools.debugger.features.code-folding", false);
   pref("devtools.debugger.features.outline", true);
   pref("devtools.debugger.features.column-breakpoints", true);
 }
@@ -87,7 +87,8 @@ export const features = new PrefsHelper("devtools.debugger.features", {
   workers: ["Bool", "workers"],
   codeCoverage: ["Bool", "code-coverage"],
   eventListeners: ["Bool", "event-listeners"],
-  outline: ["Bool", "outline"]
+  outline: ["Bool", "outline"],
+  codeFolding: ["Bool", "code-folding"]
 });
 
 if (prefs.debuggerPrefsSchemaVersion !== prefsSchemaVersion) {