Fix struct/class mismatch

llvm-svn: 108642
diff --git a/llvm/lib/CodeGen/Splitter.h b/llvm/lib/CodeGen/Splitter.h
index f253ee7..2b0645d 100644
--- a/llvm/lib/CodeGen/Splitter.h
+++ b/llvm/lib/CodeGen/Splitter.h
@@ -23,7 +23,7 @@
 
   class LiveInterval;
   class LiveIntervals;
-  class LiveRange;
+  struct LiveRange;
   class LoopSplit;
   class MachineDominatorTree;
   class MachineRegisterInfo;