mysql-native: Seamlessly supports Phobos-only sockets

[Gary Willoughby]

I've found a couple more 'bugs'. Well warnings really but should 
be addressed.

In connection.d:

lines 2022-2023 should be:

@property ParamDescription[] paramDescriptions() { return 
_paramDescriptions; }
@property FieldDescription[] fieldDescriptions() { return 
_colDescriptions; }

i.e. missing property attribute.

and line 2345 is unreachable, containing just:

break;


Compiled with: rdmd --force -w -property test.d