Make FieldDescriptor.IsPacked work appropriately.

This is a bit of a grotty hack, as we need to sort of fake proto2 field presence, but with only a proto3 version of the descriptor messages (a bit like oneof detection).
Should be okay, but will need to be careful of this if we ever implement proto2.

1 files changed, 1 insertions, 1 deletions

diff --git a/csharp/src/Google.Protobuf.Test/Reflection/FieldAccessTest.cs b/csharp/src/Google.Protobuf.Test/Reflection/FieldAccessTest.cs
index 6e1d804e..936e41c6 100644
--- a/csharp/src/Google.Protobuf.Test/Reflection/FieldAccessTest.cs
+++ b/csharp/src/Google.Protobuf.Test/Reflection/FieldAccessTest.cs
@@ -213,6 +213,6 @@ namespace Google.Protobuf.Reflection
             var descriptor = TestAllTypes.Descriptor;
             Assert.Throws<KeyNotFoundException>(() => descriptor.Fields[999999].ToString());
             Assert.Throws<KeyNotFoundException>(() => descriptor.Fields["not found"].ToString());
-        }
+        }        
     }
 }