Merge arguments branch to bleeding merge.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 18e3b4532d5630668958e7e63dca6b568aae5531..9f9becb5206ea76dcdf5e8836a18398614a2691e 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -1389,6 +1389,7 @@ void HLoadKeyedSpecializedArrayElement::PrintDataTo(
     case JSObject::FAST_ELEMENTS:
     case JSObject::FAST_DOUBLE_ELEMENTS:
     case JSObject::DICTIONARY_ELEMENTS:
+    case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
       UNREACHABLE();
       break;
   }
@@ -1474,6 +1475,7 @@ void HStoreKeyedSpecializedArrayElement::PrintDataTo(
     case JSObject::FAST_ELEMENTS:
     case JSObject::FAST_DOUBLE_ELEMENTS:
     case JSObject::DICTIONARY_ELEMENTS:
+    case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
       UNREACHABLE();
       break;
   }