Add interceptor support for symbols

test/cctest/test-accessors.cc

Index: test/cctest/test-accessors.cc
diff --git a/test/cctest/test-accessors.cc b/test/cctest/test-accessors.cc
index 5bf61c8fcac0a22f3c8bdf6efebeb99209c9df15..b30ab37ae1ee19747c7dd54bb1da3b0fff6189ba 100644
--- a/test/cctest/test-accessors.cc
+++ b/test/cctest/test-accessors.cc
@@ -38,6 +38,7 @@ using ::v8::ObjectTemplate;
 using ::v8::Value;
 using ::v8::Context;
 using ::v8::Local;
+using ::v8::Name;
 using ::v8::String;
 using ::v8::Script;
 using ::v8::Function;
@@ -513,7 +514,7 @@ void JSONStringifyEnumerator(const v8::PropertyCallbackInfo<v8::Array>& info) {
 }
 
 
-void JSONStringifyGetter(Local<String> name,
+void JSONStringifyGetter(Local<Name> name,
                          const v8::PropertyCallbackInfo<v8::Value>& info) {
   info.GetReturnValue().Set(v8_str("crbug-161028"));
 }