Cleanup. Removed warning and fixed MonoDevelop compile issue

BsonUnitTests/Jira/CSharp263Tests.cs

@@ -70,7 +70,7 @@ namespace MongoDB.BsonUnitTests.Jira {
 
         [Test]
         public void TestTwoDimensionalArrayEmpty() {
-            var c = new C { Id = 1, Obj = new int[,] { } };
+            var c = new C { Id = 1, Obj = new int[0,0] };
             var json = c.ToJson();
             var expected = "{ '_id' : 1, 'Obj' : { '_t' : 'System.Int32[,]', '_v' : [] } }".Replace("'", "\"");
             Assert.AreEqual(expected, json);
@@ -106,7 +106,7 @@ namespace MongoDB.BsonUnitTests.Jira {
 
         [Test]
         public void TestThreeDimensionalArrayEmpty() {
-            var c = new C { Id = 1, Obj = new int[,,] { } };
+            var c = new C { Id = 1, Obj = new int[0,0,0] };
             var json = c.ToJson();
             var expected = "{ '_id' : 1, 'Obj' : { '_t' : 'System.Int32[,,]', '_v' : [] } }".Replace("'", "\"");
             Assert.AreEqual(expected, json);

Driver/Core/MongoServerInstance.cs

@@ -225,7 +225,7 @@ namespace MongoDB.Driver {
                 // if ping fails assume all connections in the connection pool are doomed
                 try {
                     Ping();
-                } catch (Exception ex) {
+                } catch {
                     // Console.WriteLine("MongoServerInstance[{0}]: Ping failed: {1}.", sequentialId, ex.Message);
                     connectionPool.Clear();
                 }
@@ -235,7 +235,7 @@ namespace MongoDB.Driver {
                     var previousState = state;
                     try {
                         VerifyState(connection);
-                    } catch (Exception ex) {
+                    } catch {
                         // ignore exceptions (if any occured state will already be set to Disconnected)
                         // Console.WriteLine("MongoServerInstance[{0}]: VerifyState failed: {1}.", sequentialId, ex.Message);
                     }