Rename IS_SPEC_OBJECT to IS_JS_RECEIVER in hydrogen.

src/crankshaft/hydrogen.cc

Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 2778f1173b28dc33ad5eba7ed7c9612ffd40bc46..ad41d982bade2dd569da7fc1bf9b4090530614bd 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -11534,7 +11534,7 @@ HControlInstruction* HOptimizedGraphBuilder::BuildCompareInstruction(
       } else {
         BuildCheckHeapObject(operand_to_check);
         Add<HCheckInstanceType>(operand_to_check,
-                                HCheckInstanceType::IS_SPEC_OBJECT);
+                                HCheckInstanceType::IS_JS_RECEIVER);
         HCompareObjectEqAndBranch* result =
             New<HCompareObjectEqAndBranch>(left, right);
         return result;