Some cleanup of CWII_IPC_HLE_Device_FileIO:

The real file was never kept open for longer than a single operation so there was no point in dealing with it in DoState.
Saving the real path in the savestate was also probably a bad idea. Savestates should be a bit more portable now.

Source/Core/Common/Src/FileUtil.cpp

@@ -42,6 +42,7 @@
 #endif
 
 #include <fstream>
+#include <algorithm>
 #include <sys/stat.h>
 
 #ifndef S_ISDIR
@@ -774,6 +775,24 @@ IOFile::~IOFile()
 	Close();
 }
 
+IOFile::IOFile(IOFile&& other)
+	: m_file(NULL), m_good(true)
+{
+	Swap(other);
+}
+
+IOFile& IOFile::operator=(IOFile other)
+{
+	Swap(other);
+	return *this;
+}
+
+void IOFile::Swap(IOFile& other)
+{
+	std::swap(m_file, other.m_file);
+	std::swap(m_good, other.m_good);
+}
+
 bool IOFile::Open(const std::string& filename, const char openmode[])
 {
 	Close();