Re-added missing return in HInferRepresentation::TryChange.

src/hydrogen.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1660 matching lines @@
   int double_count = use_count[Representation::kDouble];
   int int32_count = use_count[Representation::kInteger32];
   int non_tagged_count = double_count + int32_count;
 
   // If a non-loop phi has tagged uses, don't convert it to untagged.
   if (value->IsPhi() && !value->block()->IsLoopHeader() && tagged_count > 0) {
     return Representation::None();
   }
 
   // Prefer unboxing over boxing, the latter is more expensive.
-  if (tagged_count > non_tagged_count) Representation::None();
+  if (tagged_count > non_tagged_count) return Representation::None();
 
   // Prefer Integer32 over Double, if possible.
   if (int32_count > 0 && value->IsConvertibleToInteger()) {
     return Representation::Integer32();
   }
 
   if (double_count > 0) return Representation::Double();
 
   return Representation::None();
 }
@@ skipping 5402 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify(false);  // No full verify.
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal