Code clean up. Move includes from VirtRegRewriter.h to VirtRegRewriter.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100532 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegRewriter.h b/lib/CodeGen/VirtRegRewriter.h
index 44f9df6..93474e0 100644
--- a/lib/CodeGen/VirtRegRewriter.h
+++ b/lib/CodeGen/VirtRegRewriter.h
@@ -10,11 +10,10 @@
 #ifndef LLVM_CODEGEN_VIRTREGREWRITER_H
 #define LLVM_CODEGEN_VIRTREGREWRITER_H
 
-#include "llvm/CodeGen/LiveIntervalAnalysis.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "VirtRegMap.h"
-
 namespace llvm {
+  class LiveIntervals;
+  class MachineFunction;
+  class VirtRegMap;
   
   /// VirtRegRewriter interface: Implementations of this interface assign
   /// spilled virtual registers to stack slots, rewriting the code.