Use HType::JSReceiver instead of HType::JSObject in some places.

src/crankshaft/hydrogen-instructions.h

Index: src/crankshaft/hydrogen-instructions.h
diff --git a/src/crankshaft/hydrogen-instructions.h b/src/crankshaft/hydrogen-instructions.h
index b69a9b8ea5ae9882f1dcc7edec30776530294604..59d52ea9e70d1bb0e402439dde8d169a2612cc34 100644
--- a/src/crankshaft/hydrogen-instructions.h
+++ b/src/crankshaft/hydrogen-instructions.h
@@ -776,7 +776,7 @@ class HValue : public ZoneObject {
 
   bool ToStringOrToNumberCanBeObserved() const {
     if (type().IsTaggedPrimitive()) return false;
-    if (type().IsJSObject()) return true;
+    if (type().IsJSReceiver()) return true;
     return !representation().IsSmiOrInteger32() && !representation().IsDouble();
   }
 
@@ -2880,7 +2880,7 @@ class HCheckInstanceType final : public HUnaryOperation {
 
   HType CalculateInferredType() override {
     switch (check_) {
-      case IS_JS_RECEIVER: return HType::JSObject();
+      case IS_JS_RECEIVER: return HType::JSReceiver();
       case IS_JS_ARRAY: return HType::JSArray();
       case IS_JS_DATE: return HType::JSObject();
       case IS_STRING: return HType::String();