[api] consistently expose all well-known symbols.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index a0990efd76340ac7bdca7d9ef79fce23a6ba3df0..c10a5b0c66287e77ab4b63f1478668a1c51ed481 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -7928,34 +7928,28 @@ Local<Symbol> v8::Symbol::ForApi(Isolate* isolate, Local<String> name) {
       i_isolate->SymbolFor(i::Heap::kApiSymbolTableRootIndex, i_name, false));
 }
 
-
-Local<Symbol> v8::Symbol::GetIterator(Isolate* isolate) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  return Utils::ToLocal(i_isolate->factory()->iterator_symbol());
-}
-
-
-Local<Symbol> v8::Symbol::GetUnscopables(Isolate* isolate) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  return Utils::ToLocal(i_isolate->factory()->unscopables_symbol());
-}
-
-Local<Symbol> v8::Symbol::GetToPrimitive(Isolate* isolate) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  return Utils::ToLocal(i_isolate->factory()->to_primitive_symbol());
-}
-
-Local<Symbol> v8::Symbol::GetToStringTag(Isolate* isolate) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  return Utils::ToLocal(i_isolate->factory()->to_string_tag_symbol());
-}
-
-
-Local<Symbol> v8::Symbol::GetIsConcatSpreadable(Isolate* isolate) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  return Utils::ToLocal(i_isolate->factory()->is_concat_spreadable_symbol());
-}
-
+#define WELL_KNOWN_SYMBOLS(V)                 \
+  V(HasInstance, has_instance)                \
+  V(IsConcatSpreadable, is_concat_spreadable) \
+  V(Iterator, iterator)                       \
+  V(Match, match)                             \
+  V(Replace, replace)                         \
+  V(Search, search)                           \
+  V(Split, split)                             \
+  V(ToPrimitive, to_primitive)                \
+  V(ToStringTag, to_string_tag)               \
+  V(Unscopables, unscopables)
+
+#define SYMBOL_GETTER(Name, name)                                   \
+  Local<Symbol> v8::Symbol::Get##Name(Isolate* isolate) {           \
+    i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); \
+    return Utils::ToLocal(i_isolate->factory()->name##_symbol());   \
+  }
+
+WELL_KNOWN_SYMBOLS(SYMBOL_GETTER)
+
+#undef SYMBOL_GETTER
+#undef WELL_KNOWN_SYMBOLS
 
 Local<Private> v8::Private::New(Isolate* isolate, Local<String> name) {
   i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);