[api] consistently expose all well-known symbols.

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 99f021d7acc3c2ad85c2ccc753822fb107849f8d..2d691ffef7cc9e21ee9e89a917a08090be385960 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -3357,6 +3357,15 @@ static void CheckWellKnownSymbol(v8::Local<v8::Symbol>(*getter)(v8::Isolate*),
 THREADED_TEST(WellKnownSymbols) {
   CheckWellKnownSymbol(v8::Symbol::GetIterator, "Symbol.iterator");
   CheckWellKnownSymbol(v8::Symbol::GetUnscopables, "Symbol.unscopables");
+  CheckWellKnownSymbol(v8::Symbol::GetHasInstance, "Symbol.hasInstance");
+  CheckWellKnownSymbol(v8::Symbol::GetIsConcatSpreadable,
+                       "Symbol.isConcatSpreadable");
+  CheckWellKnownSymbol(v8::Symbol::GetMatch, "Symbol.match");
+  CheckWellKnownSymbol(v8::Symbol::GetReplace, "Symbol.replace");
+  CheckWellKnownSymbol(v8::Symbol::GetSearch, "Symbol.search");
+  CheckWellKnownSymbol(v8::Symbol::GetSplit, "Symbol.split");
+  CheckWellKnownSymbol(v8::Symbol::GetToPrimitive, "Symbol.toPrimitive");
+  CheckWellKnownSymbol(v8::Symbol::GetToStringTag, "Symbol.toStringTag");
 }