1 // CS0108: `IMutableSequence.this[int]' hides inherited member `ISequence.this[int]'. Use the new keyword if hiding was intended
3 // Compiler options: -warnaserror -warn:2
5 public interface ISequence
7 object this [int index
]
13 public interface IMutableSequence
: ISequence
15 object this [int index
]