Nuke CXXFormatterFunctions.cpp - split the contents of it across different files, so that things are better organized along the C++/ObjC line

This is preparatory work for moving these formatters into language categories

llvm-svn: 246827
diff --git a/lldb/source/DataFormatters/NSSet.cpp b/lldb/source/DataFormatters/NSSet.cpp
index 77e3349..ea33a6a 100644
--- a/lldb/source/DataFormatters/NSSet.cpp
+++ b/lldb/source/DataFormatters/NSSet.cpp
@@ -7,13 +7,14 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "lldb/DataFormatters/CXXFormatterFunctions.h"
+#include "lldb/DataFormatters/Cocoa.h"
 
 #include "lldb/Core/DataBufferHeap.h"
 #include "lldb/Core/Error.h"
 #include "lldb/Core/Stream.h"
 #include "lldb/Core/ValueObject.h"
 #include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
 #include "lldb/Host/Endian.h"
 #include "lldb/Symbol/ClangASTContext.h"
 #include "lldb/Target/ObjCLanguageRuntime.h"