Feature Request: include missing pipe info in diagnostic report

[mscdex]

Currently in node diagnostic reports TCP and UDP sockets include the local and remote endpoints (using uv_*_getsockname() and uv_*_getpeername() respectively), however pipes/UNIX sockets do not. I believe it should be possible to provide these same values for pipes/UNIX sockets using uv_pipe_getsockname() and uv_pipe_getpeername().