Remove {FIRST,LAST}_SPEC_OBJECT_TYPE.

src/crankshaft/hydrogen-instructions.cc

Index: src/crankshaft/hydrogen-instructions.cc
diff --git a/src/crankshaft/hydrogen-instructions.cc b/src/crankshaft/hydrogen-instructions.cc
index 791194cfbb143983f683e4a3b47c9c053e02e9b3..b8334c61c20bdf8e91fba1c31b4a5bf79d989d65 100644
--- a/src/crankshaft/hydrogen-instructions.cc
+++ b/src/crankshaft/hydrogen-instructions.cc
@@ -1640,8 +1640,8 @@ void HCheckInstanceType::GetCheckInterval(InstanceType* first,
   DCHECK(is_interval_check());
   switch (check_) {
     case IS_SPEC_OBJECT:
-      *first = FIRST_SPEC_OBJECT_TYPE;
-      *last = LAST_SPEC_OBJECT_TYPE;
+      *first = FIRST_JS_RECEIVER_TYPE;
+      *last = LAST_JS_RECEIVER_TYPE;
       return;
     case IS_JS_ARRAY:
       *first = *last = JS_ARRAY_TYPE;