Fix a couple of string output issues

pyc_string.cpp

@@ -107,6 +107,8 @@ void OutputString(PycRef<PycString> str, char prefix, bool triple, FILE* F)
                 fprintf(F, "\\'");
             else if (useQuotes && *ch == '"')
                 fprintf(F, "\\\"");
+            else if (*ch == '\\')
+                fprintf(F, "\\\\");
             else
                 fputc(*ch, F);
         }

pyc_string.h

@@ -2,6 +2,7 @@
 #define _PYC_STRING_H
 
 #include "pyc_object.h"
+#include "data.h"
 #include <cstdio>
 
 class PycString : public PycObject {
@@ -25,6 +26,6 @@ private:
 };
 
 void OutputString(PycRef<PycString> str, char prefix = 0,
-                  bool triple = false, FILE* F = stdout);
+                  bool triple = false, FILE* F = pyc_output);
 
 #endif

pycdc.cpp

@@ -1,6 +1,5 @@
 #include <cstring>
 #include "ASTree.h"
-#include "data.h"
 
 #ifdef WIN32
 #  define PATHSEP '\\'