Visual Studio requires these

Author: borrrden

System.Collections.Generic/DefaultEqualityComparer.cs

@@ -51,6 +51,20 @@ public int GetHashCode(object obj)
 
             return GetHashCode ((T)obj);
         }
+
+        public bool Equals(object x, object y)
+        {
+
+            if (x == null || y == null) {
+                return false;
+            }
+
+            if (!(x is T) || !(y is T))  {
+                return false;
+            }
+
+            return Equals((T)x, (T)y);
+        }
     }
 }
 

System.Collections.Generic/GenericEqualityComparer.cs

@@ -53,6 +53,20 @@ public int GetHashCode(object obj)
 
             return GetHashCode ((T)obj);
         }
+
+        public bool Equals(object x, object y)
+        {
+
+            if(x == null || y == null) {
+                return false;
+            }
+
+            if(!(x is T) || !(y is T)) {
+                return false;
+            }
+
+            return Equals((T)x, (T)y);
+        }
     }
 }