Computed property names for class literals in TurboFan.

src/compiler/js-generic-lowering.cc

Index: src/compiler/js-generic-lowering.cc
diff --git a/src/compiler/js-generic-lowering.cc b/src/compiler/js-generic-lowering.cc
index 48864423146007ec632915d4ac1ad0658ca80c93..05f4aa89eb5e01e91190dca3cdbd4f78afed099c 100644
--- a/src/compiler/js-generic-lowering.cc
+++ b/src/compiler/js-generic-lowering.cc
@@ -111,7 +111,6 @@ REPLACE_RUNTIME_CALL(JSCreateScriptContext, Runtime::kAbort)
 
 #define REPLACE_UNIMPLEMENTED(op) \
   void JSGenericLowering::Lower##op(Node* node) { UNIMPLEMENTED(); }
-REPLACE_UNIMPLEMENTED(JSToName)
 REPLACE_UNIMPLEMENTED(JSYield)
 REPLACE_UNIMPLEMENTED(JSDebugger)
 #undef REPLACE_UNIMPLEMENTED
@@ -241,6 +240,11 @@ void JSGenericLowering::LowerJSToString(Node* node) {
 }
 
 
+void JSGenericLowering::LowerJSToName(Node* node) {
+  ReplaceWithBuiltinCall(node, Builtins::TO_NAME, 1);
+}
+
+
 void JSGenericLowering::LowerJSToObject(Node* node) {
   ReplaceWithBuiltinCall(node, Builtins::TO_OBJECT, 1);
 }