Enable ES6 Symbols by default

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index 95ec47963416f1d25a2a1fbadd6bfedbe99a329f..51b7d251e4f895dd9195fb32152a42265fc04135 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -2737,8 +2737,6 @@ THREADED_TEST(GlobalProxyIdentityHash) {
 
 
 THREADED_TEST(SymbolProperties) {
-  i::FLAG_harmony_symbols = true;
-
   LocalContext env;
   v8::Isolate* isolate = env->GetIsolate();
   v8::HandleScope scope(isolate);
@@ -2887,8 +2885,6 @@ THREADED_TEST(PrivateProperties) {
 
 
 THREADED_TEST(GlobalSymbols) {
-  i::FLAG_harmony_symbols = true;
-
   LocalContext env;
   v8::Isolate* isolate = env->GetIsolate();
   v8::HandleScope scope(isolate);
@@ -21396,7 +21392,6 @@ THREADED_TEST(Regress157124) {
 
 THREADED_TEST(Regress2535) {
   i::FLAG_harmony_collections = true;
-  i::FLAG_harmony_symbols = true;
   LocalContext context;
   v8::HandleScope scope(context->GetIsolate());
   Local<Value> set_value = CompileRun("new Set();");