net_4_0 change

svn path=/trunk/mcs/; revision=154937

mcs/class/System.Core/Test/System.Linq.Expressions/ExpressionTest_AddChecked.cs

@@ -194,11 +194,12 @@ namespace MonoTests.System.Linq.Expressions
 			// These are invalid:
 			InvalidOperation<byte> (Byte.MaxValue, 2);
 			InvalidOperation<sbyte> (SByte.MaxValue, 2);
-
+#if !NET_4_0
 			// Stuff that just fits in 32 bits, does not overflow:
 			MustNotOverflow<short> (Int16.MaxValue, 2);
+			MustNotOverflow<short> (Int16.MaxValue, 2);
 			MustNotOverflow<ushort> (UInt16.MaxValue, 2);
-
+#endif
 			// Doubles, floats, do not overflow
 			MustNotOverflow<float> (Single.MaxValue, 1);
 			MustNotOverflow<double> (Double.MaxValue, 1);