Fix a couple cast errors

src/deoptimizer.h

Index: src/deoptimizer.h
diff --git a/src/deoptimizer.h b/src/deoptimizer.h
index 2d7dfc895c3982be00278f149d1488435e3ca6c9..f9bf280ea82ffd9ae45559d058d5693e80202236 100644
--- a/src/deoptimizer.h
+++ b/src/deoptimizer.h
@@ -145,9 +145,9 @@ class Deoptimizer : public Malloced {
 
   static Address GetDeoptimizationEntry(int id, BailoutType type);
   static int GetDeoptimizationId(Address addr, BailoutType type);
-  static unsigned GetOutputInfo(DeoptimizationOutputData* data,
-                                unsigned node_id,
-                                SharedFunctionInfo* shared);
+  static int GetOutputInfo(DeoptimizationOutputData* data,
+                           unsigned node_id,
+                           SharedFunctionInfo* shared);
 
   static void Setup();
   static void TearDown();