Add dehoisting to the string printout of hydrogen and lithium instructions.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 45b15723dc7ac856ee6c7b19be4c7ea6ec524af9..bcb29e264ed1c098b943e7007d36a57f4b038e2c 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -395,11 +395,27 @@ void LStoreNamedGeneric::PrintDataTo(StringStream* stream) {
 }
 
 
+void LLoadKeyed::PrintDataTo(StringStream* stream) {
+  elements()->PrintTo(stream);
+  stream->Add("[");
+  key()->PrintTo(stream);
+  if (hydrogen()->IsDehoisted()) {
+    stream->Add(" + %d]", additional_index());
+  } else {
+    stream->Add("]");
+  }
+}
+
+
 void LStoreKeyed::PrintDataTo(StringStream* stream) {
   elements()->PrintTo(stream);
   stream->Add("[");
   key()->PrintTo(stream);
-  stream->Add("] <- ");
+  if (hydrogen()->IsDehoisted()) {
+    stream->Add(" + %d] <-", additional_index());
+  } else {
+    stream->Add("] <- ");
+  }
   value()->PrintTo(stream);
 }