External Array renaming and boilerplate scrapping

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index b278c70b30a9c05349c96dfa7d1666ca63b5c14e..1144eba9d6e489d30c8094df843e591f14fd62ba 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -1605,9 +1605,9 @@ inline static bool ExternalArrayOpRequiresTemp(
   // an index cannot fold the scale operation into a load and need an extra
   // temp register to do the work.
   return key_representation.IsSmi() &&
-      (elements_kind == EXTERNAL_BYTE_ELEMENTS ||
-       elements_kind == EXTERNAL_UNSIGNED_BYTE_ELEMENTS ||
-       elements_kind == EXTERNAL_PIXEL_ELEMENTS ||
+      (elements_kind == EXTERNAL_INT8_ELEMENTS ||
+       elements_kind == EXTERNAL_UINT8_ELEMENTS ||
+       elements_kind == EXTERNAL_UINT8_CLAMPED_ELEMENTS ||
        elements_kind == UINT8_ELEMENTS ||
        elements_kind == INT8_ELEMENTS ||
        elements_kind == UINT8_CLAMPED_ELEMENTS);