DevTools: [ux regression] There is no way to clear console history.

third_party/WebKit/Source/devtools/front_end/source_frame/TextEditorAutocompleteController.js

 // Copyright (c) 2014 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.
 
 /**
  * @constructor
  * @implements {WebInspector.SuggestBoxDelegate}
  * @param {!WebInspector.CodeMirrorTextEditor} textEditor
  * @param {!CodeMirror} codeMirror
  */
@@ skipping 120 matching lines @@
             this.finishAutocomplete();
             return;
         }
 
         if (!this._suggestBox)
             this._suggestBox = new WebInspector.SuggestBox(this, 6);
         var oldPrefixRange = this._prefixRange;
         this._prefixRange = prefixRange;
         if (!oldPrefixRange || prefixRange.startLine !== oldPrefixRange.startLine || prefixRange.startColumn !== oldPrefixRange.startColumn)
             this._updateAnchorBox();
-        this._suggestBox.updateSuggestions(this._anchorBox, wordsWithPrefix, 0, true, this._textEditor.copyRange(prefixRange));
+        this._suggestBox.updateSuggestions(this._anchorBox, wordsWithPrefix.map(item => ({title: item})), 0, true, this._textEditor.copyRange(prefixRange));
         if (!this._suggestBox.visible())
             this.finishAutocomplete();
         this._onSuggestionsShownForTest(wordsWithPrefix);
     },
 
     /**
      * @param {!Array.<string>} suggestions
      */
     _onSuggestionsShownForTest: function(suggestions) { },
 
@@ skipping 188 matching lines @@
         {
             return dictionary.wordCount(b) - dictionary.wordCount(a) || a.length - b.length;
         }
 
         function excludeFilter(excludeWord, word)
         {
             return word !== excludeWord;
         }
     }
 }