Subzero: Change llvm::OwningPtr to C++11's std::unique_ptr.

src/IceGlobalContext.cpp

Index: src/IceGlobalContext.cpp
diff --git a/src/IceGlobalContext.cpp b/src/IceGlobalContext.cpp
index 4cca6c997b1fe51798a2dcc5818c8824baf73b24..251635f39facc9e8b1b7760758b180834f0a3dad 100644
--- a/src/IceGlobalContext.cpp
+++ b/src/IceGlobalContext.cpp
@@ -15,14 +15,14 @@
 #include <ctype.h> // isdigit(), isupper()
 #include <locale>  // locale
 
-#include "IceDefs.h"
-#include "IceTypes.h"
 #include "IceCfg.h"
 #include "IceClFlags.h"
+#include "IceDefs.h"
 #include "IceGlobalContext.h"
 #include "IceOperand.h"
 #include "IceTargetLowering.h"
 #include "IceTimerTree.h"
+#include "IceTypes.h"
 
 namespace Ice {