Use IsPropertyName instead of IsInternalizedString in VisitObjectLiteral.

src/crankshaft/hydrogen.cc

Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 7f2ce828e572b956c60bed2c54a78bcfb9ac8a9d..8315a69ccd5de1d258c8860a1d8138a7c9ea20d4 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -5932,7 +5932,7 @@ void HOptimizedGraphBuilder::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()) {
             CHECK_ALIVE(VisitForValue(value));
             HValue* value = Pop();