Fix an issue where scripted commands would not actually print any of their output if an immediate output file was set in the result object via a Python file object

Fixes rdar://24130303

llvm-svn: 257644

lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h

@@ -525,6 +525,8 @@ class PythonFile : public PythonObject
     void Reset(PyRefType type, PyObject *py_obj) override;
     void Reset(File &file, const char *mode);
 
+    static uint32_t GetOptionsFromMode(llvm::StringRef mode);
+    
     bool GetUnderlyingFile(File &file) const;
 };