Move ConnectionFileDescriptor to platform-specific Host directory.

As part of getting ConnectionFileDescriptor working on Windows,
there is going to be alot of platform specific work to be done.
As a result, the implementation is moving into Host.  This patch
performs the code move and fixes up call-sites appropriately.

Reviewed by: Greg Clayton
Differential Revision: http://reviews.llvm.org/D5548

llvm-svn: 219143
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
index eea7655..805e942 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
@@ -17,10 +17,10 @@
 
 // C++ Includes
 // Other libraries and framework includes
-#include "lldb/Core/ConnectionFileDescriptor.h"
 #include "lldb/Core/Log.h"
 #include "lldb/Core/StreamFile.h"
 #include "lldb/Core/StreamString.h"
+#include "lldb/Host/ConnectionFileDescriptor.h"
 #include "lldb/Host/FileSpec.h"
 #include "lldb/Host/FileSystem.h"
 #include "lldb/Host/Host.h"