Match declaration to definition.

llvm-svn: 75440
diff --git a/llvm/lib/CodeGen/Spiller.h b/llvm/lib/CodeGen/Spiller.h
index 9c3900d..f339336 100644
--- a/llvm/lib/CodeGen/Spiller.h
+++ b/llvm/lib/CodeGen/Spiller.h
@@ -14,7 +14,7 @@
 
 namespace llvm {
 
-  class LiveInterval;
+  struct LiveInterval;
   class LiveIntervals;
   class LiveStacks;
   class MachineFunction;