Make String::Empty inlineable.

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 6a5e6f89cad6e6641b3ed5126a484c1710e8393e..87860f430fcf907281c1218018615b7f5778d96d 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -16450,6 +16450,13 @@ TEST(PrimaryStubCache) {
 }
 
 
+static int fatal_error_callback_counter = 0;
+static void CountingErrorCallback(const char* location, const char* message) {
+  printf("CountingErrorCallback(\"%s\", \"%s\")\n", location, message);
+  fatal_error_callback_counter++;
+}
+
+
 TEST(StaticGetters) {
   v8::HandleScope scope;
   LocalContext context;
@@ -16466,24 +16473,12 @@ TEST(StaticGetters) {
   i::Handle<i::Object> false_value = FACTORY->false_value();
   CHECK(*v8::Utils::OpenHandle(*v8::False()) == *false_value);
   CHECK(*v8::Utils::OpenHandle(*v8::False(isolate)) == *false_value);
-}
-
 
-static int fatal_error_callback_counter = 0;
-static void CountingErrorCallback(const char* location, const char* message) {
-  printf("CountingErrorCallback(\"%s\", \"%s\")\n", location, message);
-  fatal_error_callback_counter++;
-}
-
-
-TEST(StaticGettersAfterDeath) {
-  v8::HandleScope scope;
-  LocalContext context;
-  v8::Isolate* isolate = v8::Isolate::GetCurrent();
+  // Test after-death behavior.
   CHECK(i::Internals::IsInitialized(isolate));
   CHECK_EQ(0, fatal_error_callback_counter);
   v8::V8::SetFatalErrorHandler(CountingErrorCallback);
-  v8::Utils::ReportApiFailure("StaticGettersAfterDeath()", "Kill V8");
+  v8::Utils::ReportApiFailure("StaticGetters()", "Kill V8");
   i::Isolate::Current()->TearDown();
   CHECK(!i::Internals::IsInitialized(isolate));
   CHECK_EQ(1, fatal_error_callback_counter);
@@ -16522,3 +16517,26 @@ TEST(IsolateEmbedderData) {
   CHECK_EQ(data2, isolate->GetData());
   CHECK_EQ(data2, ISOLATE->GetData());
 }
+
+
+TEST(StringEmpty) {
+  v8::HandleScope scope;
+  LocalContext context;
+  v8::Isolate* isolate = v8::Isolate::GetCurrent();
+  i::Handle<i::Object> empty_string = FACTORY->empty_symbol();
+  CHECK(*v8::Utils::OpenHandle(*v8::String::Empty()) == *empty_string);
+  CHECK(*v8::Utils::OpenHandle(*v8::String::Empty(isolate)) == *empty_string);
+
+  // Test after-death behavior.
+  CHECK(i::Internals::IsInitialized(isolate));
+  CHECK_EQ(0, fatal_error_callback_counter);
+  v8::V8::SetFatalErrorHandler(CountingErrorCallback);
+  v8::Utils::ReportApiFailure("StringEmpty()", "Kill V8");
+  i::Isolate::Current()->TearDown();
+  CHECK(!i::Internals::IsInitialized(isolate));
+  CHECK_EQ(1, fatal_error_callback_counter);
+  CHECK(v8::String::Empty().IsEmpty());
+  CHECK_EQ(2, fatal_error_callback_counter);
+  CHECK(v8::String::Empty(isolate).IsEmpty());
+  CHECK_EQ(3, fatal_error_callback_counter);
+}