propose to rename natPlainSocketImpl to natPosixPlainSocketImpl

[Bryce McKinlay]

Adam Megacz wrote:

>You're saying roll all the platform specific stuff into one file per
>platform? 
>

Not for everything. Things like the threads implementation and 
natFileDescriptor should stay in separate files because they really are 
completely specific to one platform, and it would be good to keep things 
grouped by functionality and avoid any one file getting overly huge.

I'm thinking for the cases where there are currently bits and peices of 
platform specific code in an otherwise generic file (prims.cc, 
natSystem.cc, etc), it would be nice to move them out to a single file 
for the platform, avoiding large #ifdef blocks.

regards

Bryce.