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

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1488493002

Cr-Commit-Position: refs/heads/master@{#32402}

src/crankshaft/hydrogen-instructions.cc

@@ -1524,7 +1524,7 @@ HValue* HChange::Canonicalize() {
 
 HValue* HWrapReceiver::Canonicalize() {
   if (HasNoUses()) return NULL;
-  if (receiver()->type().IsJSObject()) {
+  if (receiver()->type().IsJSReceiver()) {
     return receiver();
   }
   return this;
@@ -1620,7 +1620,7 @@ HValue* HUnaryMathOperation::Canonicalize() {
 
 
 HValue* HCheckInstanceType::Canonicalize() {
-  if ((check_ == IS_JS_RECEIVER && value()->type().IsJSObject()) ||
+  if ((check_ == IS_JS_RECEIVER && value()->type().IsJSReceiver()) ||
       (check_ == IS_JS_ARRAY && value()->type().IsJSArray()) ||
       (check_ == IS_STRING && value()->type().IsString())) {
     return value();
@@ -3276,7 +3276,7 @@ bool HIsStringAndBranch::KnownSuccessorBlock(HBasicBlock** block) {
       value()->type().IsNull() ||
       value()->type().IsBoolean() ||
       value()->type().IsUndefined() ||
-      value()->type().IsJSObject()) {
+      value()->type().IsJSReceiver()) {
     *block = SecondSuccessor();
     return true;
   }

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();