Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Workflow.Runtime/DebugEngine/WorkflowDebuggerSteppingAttribute.cs

@@ -0,0 +1,32 @@
+using System;
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public enum WorkflowDebuggerSteppingOption
+    {
+        Sequential = 0,
+        Concurrent = 1
+    }
+
+    [AttributeUsage(AttributeTargets.Class, AllowMultiple = false, Inherited = true)]
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public sealed class WorkflowDebuggerSteppingAttribute : Attribute
+    {
+        private WorkflowDebuggerSteppingOption steppingOption;
+
+        public WorkflowDebuggerSteppingAttribute(WorkflowDebuggerSteppingOption steppingOption)
+        {
+            this.steppingOption = steppingOption;
+        }
+
+        public WorkflowDebuggerSteppingOption SteppingOption
+        {
+            get
+            {
+                return this.steppingOption;
+            }
+        }
+    }
+}