X87: Use IsPropertyName instead of IsInternalizedString in VisitObjectLiteral.

src/full-codegen/x87/full-codegen-x87.cc

Index: src/full-codegen/x87/full-codegen-x87.cc
diff --git a/src/full-codegen/x87/full-codegen-x87.cc b/src/full-codegen/x87/full-codegen-x87.cc
index 472370558f88c6c2be71ca79d32f2bbdeb84b963..7aa837259d5c8c68159b3ce2bda69512b8b2e345 100644
--- a/src/full-codegen/x87/full-codegen-x87.cc
+++ b/src/full-codegen/x87/full-codegen-x87.cc
@@ -1347,7 +1347,7 @@ void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
       case ObjectLiteral::Property::COMPUTED:
         // It is safe to use [[Put]] here because the boilerplate already
         // contains computed properties with an uninitialized value.
-        if (key->value()->IsInternalizedString()) {
+        if (key->IsPropertyName()) {
           if (property->emit_store()) {
             VisitForAccumulatorValue(value);
             DCHECK(StoreDescriptor::ValueRegister().is(eax));