[DevTools] Migrate usages of Target to RuntimeModel where makes sense

third_party/WebKit/Source/devtools/front_end/object_ui/JavaScriptAutocomplete.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 ObjectUI.JavaScriptAutocomplete = {};
 
 /** @typedef {{title:(string|undefined), items:Array<string>}} */
 ObjectUI.JavaScriptAutocomplete.CompletionGroup;
 
 /**
@@ skipping 309 matching lines @@
           false /* accessorPropertiesOnly */, false /* generatePreview */,
           propertiesCollected.bind(null, scope.typeName()));
     }
   }
 
   /**
    * @param {?SDK.RemoteObject} result
    * @param {!Protocol.Runtime.ExceptionDetails=} exceptionDetails
    */
   function receivedPropertyNamesFromEval(result, exceptionDetails) {
-    executionContext.target().runtimeModel.releaseObjectGroup('completion');
+    executionContext.runtimeModel.releaseObjectGroup('completion');
     if (result && !exceptionDetails)
       receivedPropertyNames(/** @type {!Object} */ (result.value));
     else
       fulfill([]);
   }
 
   /**
    * @param {?Object} object
    */
   function receivedPropertyNames(object) {
-    executionContext.target().runtimeModel.releaseObjectGroup('completion');
+    executionContext.runtimeModel.releaseObjectGroup('completion');
     if (!object) {
       fulfill([]);
       return;
     }
     var propertyGroups = /** @type {!Array<!ObjectUI.JavaScriptAutocomplete.CompletionGroup>} */ (object);
     var includeCommandLineAPI = (!dotNotation && !bracketNotation);
     if (includeCommandLineAPI) {
       const commandLineAPI = [
         'dir',
         'dirxml',
@@ skipping 108 matching lines @@
   function itemComparator(naturalOrder, a, b) {
     var aStartsWithUnderscore = a.startsWith('_');
     var bStartsWithUnderscore = b.startsWith('_');
     if (aStartsWithUnderscore && !bStartsWithUnderscore)
       return 1;
     if (bStartsWithUnderscore && !aStartsWithUnderscore)
       return -1;
     return naturalOrder ? String.naturalOrderComparator(a, b) : a.localeCompare(b);
   }
 };