DevTools: Added error message when the command is invoked from the console with exception

Source/devtools/front_end/console/ConsoleViewMessage.js

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 326 matching lines @@
                 continue;
             }
 
             if (typeof parameters[i] === "object")
                 parameters[i] = target.runtimeModel.createRemoteObject(parameters[i]);
             else
                 parameters[i] = target.runtimeModel.createRemoteObjectFromPrimitiveValue(parameters[i]);
         }
 
         // There can be string log and string eval result. We distinguish between them based on message type.
-        var shouldFormatMessage = WebInspector.RemoteObject.type(parameters[0]) === "string" && this._message.type !== WebInspector.ConsoleMessage.MessageType.Result;
+        var shouldFormatMessage = WebInspector.RemoteObject.type(parameters[0]) === "string" && (this._message.type !== WebInspector.ConsoleMessage.MessageType.Result || this._message.level === WebInspector.ConsoleMessage.MessageLevel.Error);
 
         // Multiple parameters with the first being a format string. Save unused substitutions.
         if (shouldFormatMessage) {
             // Multiple parameters with the first being a format string. Save unused substitutions.
             var result = this._formatWithSubstitutionString(parameters[0].description, parameters.slice(1), formattedResult);
             parameters = result.unusedSubstitutions;
             if (parameters.length)
                 formattedResult.appendChild(document.createTextNode(" "));
         }
 
@@ skipping 903 matching lines @@
     {
         if (!this._wrapperElement) {
             WebInspector.ConsoleViewMessage.prototype.toMessageElement.call(this);
             this._wrapperElement.classList.toggle("collapsed", this._collapsed);
         }
         return this._wrapperElement;
     },
 
     __proto__: WebInspector.ConsoleViewMessage.prototype
 }