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/Core/Debugger.cpp b/lldb/source/Core/Debugger.cpp
index 92f40a5..5fb60cf 100644
--- a/lldb/source/Core/Debugger.cpp
+++ b/lldb/source/Core/Debugger.cpp
@@ -18,7 +18,6 @@
 #include "llvm/ADT/StringRef.h"
 
 #include "lldb/lldb-private.h"
-#include "lldb/Core/ConnectionFileDescriptor.h"
 #include "lldb/Core/Module.h"
 #include "lldb/Core/PluginManager.h"
 #include "lldb/Core/RegisterValue.h"
@@ -34,6 +33,7 @@
 #include "lldb/DataFormatters/DataVisualization.h"
 #include "lldb/DataFormatters/FormatManager.h"
 #include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/Host/ConnectionFileDescriptor.h"
 #include "lldb/Host/HostInfo.h"
 #include "lldb/Host/Terminal.h"
 #include "lldb/Host/ThreadLauncher.h"