CSHARP-438. Added AsQueryable extension method for a typed MongoCollection to remove the redundant type specification requirement.

Author: craiggwilson

Driver/Linq/LinqExtensionMethods.cs

@@ -35,6 +35,18 @@ public static IQueryable<T> AsQueryable<T>(this MongoCollection collection)
         {
             var provider = new MongoQueryProvider(collection);
             return new MongoQueryable<T>(provider);
+        }
+
+        /// <summary>
+        /// Returns an instance of IQueryable{{T}} for a MongoCollection.
+        /// </summary>
+        /// <typeparam name="T">The type of the returned documents.</typeparam>
+        /// <param name="collection">The name of the collection.</param>
+        /// <returns>An instance of IQueryable{{T}} for a MongoCollection.</returns>
+        public static IQueryable<T> AsQueryable<T>(this MongoCollection<T> collection)
+        {
+            var provider = new MongoQueryProvider(collection);
+            return new MongoQueryable<T>(provider);
         }
     }
 }