Fix for IndexOutOfRangeException in ILReader.ReadOpCode(), part 2 (#84)

* Add failing test

* Fix OperandType.ShortInlineI handling

* Remove invalid comment

test/Ben.Demystifier.Test/ILReaderTests.cs

@@ -34,6 +34,10 @@ namespace Ben.Demystifier.Test
                     40, 160, 4, 0, 6, 114, 253, 15, 0, 112, 115, 90, 0, 0, 10, 122, 254, 6, 32, 5, 0,
                     6, 115, 137, 2, 0, 10, 115, 61, 2, 0, 6, 42
                 } },
+
+                { new byte[] {
+                    31, 254, 115, 42, 2, 0, 6, 37, 2, 125, 159, 0, 0, 4, 37, 3, 125, 158, 0, 0, 4, 42
+                } },
             };
 
         //  https://github.com/benaadams/Ben.Demystifier/issues/56