add a test for a ref-returning non-default property

Author: Timur Kelman

Tests/TestData/MultiFileCharacterization/SourceFiles/CSharpRefReturn/RefReturnList.cs

@@ -14,5 +14,13 @@ public ref T this[int i] {
                 return ref dummy;
             }
         }
+
+        public ref T RefProperty
+        {
+            get
+            {
+                return ref dummy;
+            }
+        }
     }
 }

Tests/TestData/MultiFileCharacterization/SourceFiles/VisualBasicUsesCSharpRefReturn/ByRefArgument.vb

@@ -1,12 +1,20 @@
 Public Class ByRefArgument
     Sub UseArr()
-        Dim arr() As Object
-        Modify(arr(0))
+        Dim arrObj() As Object
+        Modify(arrObj(0))
+
+        Dim arrInt() As Integer
+        Modify(arrInt(0))
     End Sub
 
     Sub UseRefReturn()
-        Dim lst As CSharpRefReturn.RefReturnList(Of Object)
-        Modify(lst(0))
+        Dim lstObj As CSharpRefReturn.RefReturnList(Of Object)
+        Modify(lstObj(0))
+        Modify(lstObj.RefProperty)
+
+        Dim lstInt As CSharpRefReturn.RefReturnList(Of Integer)
+        Modify(lstInt(0))
+        Modify(lstInt.RefProperty)
     End Sub
 
     Sub Modify(ByRef o As Object)

Tests/TestData/MultiFileCharacterization/VBToCSResults/ConvertVbUsingCSharpRefReturnOnly/VisualBasicUsesCSharpRefReturn/ByRefArgument.cs

@@ -1,18 +1,35 @@
-
+using Microsoft.VisualBasic.CompilerServices;
+
 namespace VisualBasicUsesCSharpRefReturn
 {
     public class ByRefArgument
     {
         public void UseArr()
         {
-            var arr = default(object[]);
-            Modify(ref arr[0]);
+            var arrObj = default(object[]);
+            Modify(ref arrObj[0]);
+
+            var arrInt = default(int[]);
+            var tmp = arrInt;
+            object argo = tmp[0];
+            Modify(ref argo);
+            tmp[0] = Conversions.ToInteger(argo);
         }
 
         public void UseRefReturn()
         {
-            var lst = default(CSharpRefReturn.RefReturnList<object>);
-            Modify(ref lst[0]);
+            var lstObj = default(CSharpRefReturn.RefReturnList<object>);
+            Modify(ref lstObj[0]);
+            Modify(ref lstObj.RefProperty);
+
+            var lstInt = default(CSharpRefReturn.RefReturnList<int>);
+            var tmp = lstInt;
+            object argo = tmp[0];
+            Modify(ref argo);
+            tmp[0] = Conversions.ToInteger(argo);
+            object argo1 = lstInt.RefProperty;
+            Modify(ref argo1);
+            lstInt.RefProperty = Conversions.ToInteger(argo1);
         }
 
         public void Modify(ref object o)