Merge from master

src/vs/base/common/errorsWithActions.ts

@@ -0,0 +1,28 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { IAction } from 'vs/base/common/actions';
+
+export interface IErrorOptions {
+	actions?: IAction[];
+}
+
+export interface IErrorWithActions {
+	actions?: IAction[];
+}
+
+export function isErrorWithActions(obj: any): obj is IErrorWithActions {
+	return obj instanceof Error && Array.isArray((obj as IErrorWithActions).actions);
+}
+
+export function createErrorWithActions(message: string, options: IErrorOptions = Object.create(null)): Error & IErrorWithActions {
+	const result = new Error(message);
+
+	if (options.actions) {
+		(<IErrorWithActions>result).actions = options.actions;
+	}
+
+	return result;
+}