Fix test ItemsRepeater VerifyAnchor (#1797)

Author: marcelwgn

dev/Repeater/APITests/RepeaterTests.cs

@@ -196,14 +196,6 @@ public void ValidateGetSetBackground()
         [TestMethod]
         public void VerifyCurrentAnchor()
         {
-            if(PlatformConfiguration.IsDebugBuildConfiguration())
-            {
-                // Test is failing in chk configuration due to:
-                // Bug #1726 Test Failure: RepeaterTests.VerifyCurrentAnchor 
-                Log.Warning("Skipping test for Debug builds.");
-                return;
-            }
-
             ItemsRepeater rootRepeater = null;
             ScrollViewer scrollViewer = null;
             ItemsRepeaterScrollHost scrollhost = null;
@@ -257,6 +249,11 @@ public void VerifyCurrentAnchor()
                     var anchor = PlatformConfiguration.IsOSVersionLessThan(OSVersion.Redstone5) ?
                             scrollhost.CurrentAnchor :
                             scrollViewer.CurrentAnchor;
+                    if (PlatformConfiguration.IsOsVersion(OSVersion.NineteenH1) 
+                        && PlatformConfiguration.IsDebugBuildConfiguration())
+                    {
+                        anchor = scrollhost.CurrentAnchor;
+                    }
                     var anchorIndex = rootRepeater.GetElementIndex(anchor);
                     Log.Comment("CurrentAnchor: " + anchorIndex);
                     Verify.AreEqual(i * 4, anchorIndex);