Rename IS_SPEC_OBJECT to IS_JS_RECEIVER in hydrogen.

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 b8334c61c20bdf8e91fba1c31b4a5bf79d989d65..b2cdb789e943c0a52236721f4e67c8e29f01cbd9 100644
--- a/src/crankshaft/hydrogen-instructions.cc
+++ b/src/crankshaft/hydrogen-instructions.cc
@@ -1620,7 +1620,7 @@ HValue* HUnaryMathOperation::Canonicalize() {
 
 
 HValue* HCheckInstanceType::Canonicalize() {
-  if ((check_ == IS_SPEC_OBJECT && value()->type().IsJSObject()) ||
+  if ((check_ == IS_JS_RECEIVER && value()->type().IsJSObject()) ||
       (check_ == IS_JS_ARRAY && value()->type().IsJSArray()) ||
       (check_ == IS_STRING && value()->type().IsString())) {
     return value();
@@ -1639,7 +1639,7 @@ void HCheckInstanceType::GetCheckInterval(InstanceType* first,
                                           InstanceType* last) {
   DCHECK(is_interval_check());
   switch (check_) {
-    case IS_SPEC_OBJECT:
+    case IS_JS_RECEIVER:
       *first = FIRST_JS_RECEIVER_TYPE;
       *last = LAST_JS_RECEIVER_TYPE;
       return;
@@ -1716,7 +1716,7 @@ HValue* HCheckValue::Canonicalize() {
 
 const char* HCheckInstanceType::GetCheckName() const {
   switch (check_) {
-    case IS_SPEC_OBJECT: return "object";
+    case IS_JS_RECEIVER: return "object";
     case IS_JS_ARRAY: return "array";
     case IS_JS_DATE:
       return "date";