Fix a few more clang (3.2) warnings on Linux:

- remove unused members
- add NO_PEDANTIC to selected Makefiles
- fix return values (removed NULL as needed)
- disable warning about four-char-constants
- remove unneeded const from operator*() declaration
- add missing lambda function return types
- fix printf() with no format string
- change sizeof to use a type name instead of variable name
- fix Linux ProcessMonitor.cpp to be 32/64 bit friendly
- disable warnings emitted by swig-generated C++ code

Patch by Matt Kopec!

llvm-svn: 169645

lldb/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp

@@ -178,7 +178,7 @@ bool
 OperatingSystemPython::UpdateThreadList (ThreadList &old_thread_list, ThreadList &new_thread_list)
 {
     if (!m_interpreter || !m_python_object)
-        return NULL;
+        return false;
     
     LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS));
     
@@ -193,7 +193,7 @@ OperatingSystemPython::UpdateThreadList (ThreadList &old_thread_list, ThreadList
 
     auto object_sp = m_interpreter->OSPlugin_QueryForThreadsInfo(m_interpreter->MakeScriptObject(m_python_object));
     if (!object_sp)
-        return NULL;
+        return false;
     PythonDataObject pyobj((PyObject*)object_sp->GetObject());
     PythonDataArray threads_array (pyobj.GetArrayObject());
     if (threads_array)