Make the header self-contained and follow #include guidelines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109774 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-diff/DifferenceEngine.h b/tools/llvm-diff/DifferenceEngine.h
index 9d0ebec..bc33131 100644
--- a/tools/llvm-diff/DifferenceEngine.h
+++ b/tools/llvm-diff/DifferenceEngine.h
@@ -15,17 +15,19 @@
#ifndef _LLVM_DIFFERENCE_ENGINE_H_
#define _LLVM_DIFFERENCE_ENGINE_H_
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringRef.h"
+
#include <utility>
-#include <llvm/ADT/SmallVector.h>
-#include <llvm/ADT/StringRef.h>
namespace llvm {
+ class Function;
+ class GlobalValue;
+ class Instruction;
class LLVMContext;
class Module;
- class Function;
class Twine;
class Value;
- class GlobalValue;
/// A class for performing structural comparisons of LLVM assembly.
class DifferenceEngine {