Update LLVM for 3.5 rebase (r209712).

Change-Id: I149556c940fb7dc92d075273c87ff584f400941f
diff --git a/lib/Transforms/Scalar/SampleProfile.cpp b/lib/Transforms/Scalar/SampleProfile.cpp
index 20d6daa..8e557aa 100644
--- a/lib/Transforms/Scalar/SampleProfile.cpp
+++ b/lib/Transforms/Scalar/SampleProfile.cpp
@@ -22,8 +22,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#define DEBUG_TYPE "sample-profile"
-
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallPtrSet.h"
@@ -54,6 +52,8 @@
 
 using namespace llvm;
 
+#define DEBUG_TYPE "sample-profile"
+
 // Command line option to specify the file to read samples from. This is
 // mainly used for debugging.
 static cl::opt<std::string> SampleProfileFile(
@@ -120,8 +120,8 @@
 class SampleFunctionProfile {
 public:
   SampleFunctionProfile()
-      : TotalSamples(0), TotalHeadSamples(0), HeaderLineno(0), DT(0), PDT(0),
-        LI(0), Ctx(0) {}
+      : TotalSamples(0), TotalHeadSamples(0), HeaderLineno(0), DT(nullptr),
+        PDT(nullptr), LI(nullptr), Ctx(nullptr) {}
 
   unsigned getFunctionLoc(Function &F);
   bool emitAnnotations(Function &F, DominatorTree *DomTree,
@@ -315,7 +315,7 @@
   /// \brief Name of the profile file to load.
   StringRef Filename;
 
-  /// \brief Flag indicating whether the profile input loaded succesfully.
+  /// \brief Flag indicating whether the profile input loaded successfully.
   bool ProfileIsValid;
 };
 }