Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

external/aspnetwebstack/test/System.Web.Razor.Test/Utils/EnumerableUtils.cs

@@ -0,0 +1,19 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+
+using System.Collections.Generic;
+
+namespace System.Web.Razor.Test.Utils
+{
+    public static class EnumerableUtils
+    {
+        public static void RunPairwise<T, V>(IEnumerable<T> left, IEnumerable<V> right, Action<T, V> action)
+        {
+            IEnumerator<T> leftEnum = left.GetEnumerator();
+            IEnumerator<V> rightEnum = right.GetEnumerator();
+            while (leftEnum.MoveNext() && rightEnum.MoveNext())
+            {
+                action(leftEnum.Current, rightEnum.Current);
+            }
+        }
+    }
+}