A64: Synchronize with r17807.

src/lithium.cc

Index: src/lithium.cc
diff --git a/src/lithium.cc b/src/lithium.cc
index 1920646cd1a3254278cb1b4dd61de00e1d702fb4..38e880ef6a0ef61d09f4db764f93f5eb447d9e36 100644
--- a/src/lithium.cc
+++ b/src/lithium.cc
@@ -236,36 +236,6 @@ void LPointerMap::PrintTo(StringStream* stream) {
 }
 
 
-int ElementsKindToShiftSize(ElementsKind elements_kind) {
-  switch (elements_kind) {
-    case EXTERNAL_BYTE_ELEMENTS:
-    case EXTERNAL_PIXEL_ELEMENTS:
-    case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-      return 0;
-    case EXTERNAL_SHORT_ELEMENTS:
-    case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-      return 1;
-    case EXTERNAL_INT_ELEMENTS:
-    case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-    case EXTERNAL_FLOAT_ELEMENTS:
-      return 2;
-    case EXTERNAL_DOUBLE_ELEMENTS:
-    case FAST_DOUBLE_ELEMENTS:
-    case FAST_HOLEY_DOUBLE_ELEMENTS:
-      return 3;
-    case FAST_SMI_ELEMENTS:
-    case FAST_ELEMENTS:
-    case FAST_HOLEY_SMI_ELEMENTS:
-    case FAST_HOLEY_ELEMENTS:
-    case DICTIONARY_ELEMENTS:
-    case NON_STRICT_ARGUMENTS_ELEMENTS:
-      return kPointerSizeLog2;
-  }
-  UNREACHABLE();
-  return 0;
-}
-
-
 int StackSlotOffset(int index) {
   if (index >= 0) {
     // Local or spill slot. Skip the frame pointer, function, and
@@ -375,7 +345,8 @@ int LChunk::GetParameterStackSlot(int index) const {
   // shift all parameter indexes down by the number of parameters, and
   // make sure they end up negative so they are distinguishable from
   // spill slots.
-  int result = index - info()->scope()->num_parameters() - 1;
+  int result = index - info()->num_parameters() - 1;
+
   ASSERT(result < 0);
   return result;
 }