Distinguish slow from fast sloppy arguments

src/elements-kind.cc

Index: src/elements-kind.cc
diff --git a/src/elements-kind.cc b/src/elements-kind.cc
index c669917c42612e8665c9731b1a8b6bddc0c0b9c2..758b80ddbdeaaf3a86af3d5d632fbf50bb6cefca 100644
--- a/src/elements-kind.cc
+++ b/src/elements-kind.cc
@@ -44,7 +44,8 @@ int ElementsKindToShiftSize(ElementsKind elements_kind) {
     case FAST_HOLEY_SMI_ELEMENTS:
     case FAST_HOLEY_ELEMENTS:
     case DICTIONARY_ELEMENTS:
-    case SLOPPY_ARGUMENTS_ELEMENTS:
+    case FAST_SLOPPY_ARGUMENTS_ELEMENTS:
+    case SLOW_SLOPPY_ARGUMENTS_ELEMENTS:
       return kPointerSizeLog2;
   }
   UNREACHABLE();
@@ -134,21 +135,6 @@ ElementsKind GetNextTransitionElementsKind(ElementsKind kind) {
 }
 
 
-ElementsKind GetNextMoreGeneralFastElementsKind(ElementsKind elements_kind,
-                                                bool allow_only_packed) {
-  DCHECK(IsFastElementsKind(elements_kind));
-  DCHECK(elements_kind != TERMINAL_FAST_ELEMENTS_KIND);
-  while (true) {
-    elements_kind = GetNextTransitionElementsKind(elements_kind);
-    if (!IsFastHoleyElementsKind(elements_kind) || !allow_only_packed) {
-      return elements_kind;
-    }
-  }
-  UNREACHABLE();
-  return TERMINAL_FAST_ELEMENTS_KIND;
-}
-
-
 static bool IsTypedArrayElementsKind(ElementsKind elements_kind) {
   return IsFixedTypedArrayElementsKind(elements_kind) ||
       IsExternalArrayElementsKind(elements_kind);