Using 'nameof' operator instead of margic strings

src/Microsoft.AspNet.Mvc.Core/Routing/ActionSelectionDecisionTree.cs

@@ -170,11 +170,11 @@ namespace Microsoft.AspNet.Mvc.Routing
                             // would throw.
 #if DNX451
                             throw new InvalidEnumArgumentException(
-                                "item",
+                                nameof(item),
                                 (int)constraint.KeyHandling,
                                 typeof(RouteKeyHandling));
 #else
-                            throw new ArgumentOutOfRangeException("item");
+                            throw new ArgumentOutOfRangeException(nameof(item));
 #endif
                         }
 

src/Microsoft.AspNet.Mvc.Extensions/AntiForgery/BinaryBlob.cs

@@ -29,11 +29,11 @@ namespace Microsoft.AspNet.Mvc
         {
             if (bitLength < 32 || bitLength % 8 != 0)
             {
-                throw new ArgumentOutOfRangeException("bitLength");
+                throw new ArgumentOutOfRangeException(nameof(bitLength));
             }
             if (data == null || data.Length != bitLength / 8)
             {
-                throw new ArgumentOutOfRangeException("data");
+                throw new ArgumentOutOfRangeException(nameof(data));
             }
 
             _data = data;

test/Microsoft.AspNet.Mvc.Core.Test/ModelBinding/MutableObjectModelBinderTest.cs

@@ -1744,7 +1744,7 @@ namespace Microsoft.AspNet.Mvc.ModelBinding
                 {
                     if (value < DateOfBirth)
                     {
-                        throw new ArgumentOutOfRangeException("value", "Date of death can't be before date of birth.");
+                        throw new ArgumentOutOfRangeException(nameof(value), "Date of death can't be before date of birth.");
                     }
                     _dateOfDeath = value;
                 }