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
diff --git a/lldb/tools/driver/IOChannel.cpp b/lldb/tools/driver/IOChannel.cpp
index ade07b0..92bd372 100644
--- a/lldb/tools/driver/IOChannel.cpp
+++ b/lldb/tools/driver/IOChannel.cpp
@@ -472,7 +472,7 @@
     }
     BroadcastEventByType (IOChannel::eBroadcastBitThreadDidExit);
     m_driver = NULL;
-    m_read_thread = NULL;
+    m_read_thread = 0;
 }
 
 bool