Clean up builtins export whitelist.

src/js/prologue.js

Index: src/js/prologue.js
diff --git a/src/js/prologue.js b/src/js/prologue.js
index 9728b6413bdb996ec1dd938021a32464fcdf7a58..dba77d7d8d130402df5284cc2dbf516e6cd71199 100644
--- a/src/js/prologue.js
+++ b/src/js/prologue.js
@@ -181,10 +181,7 @@ function PostNatives(utils) {
 
   // Whitelist of exports from normal natives to experimental natives and debug.
   var expose_list = [
-    "ArrayToString",
     "FormatDateToParts",
-    "GetIterator",
-    "GetMethod",
     "MapEntries",
     "MapIterator",
     "MapIteratorNext",
@@ -196,25 +193,12 @@ function PostNatives(utils) {
     "ToLocaleLowerCaseI18N",
     "ToLocaleUpperCaseI18N",
     "ToLowerCaseI18N",
-    "ToPositiveInteger",
     "ToUpperCaseI18N",
     // From runtime:
-    "is_concat_spreadable_symbol",
-    "iterator_symbol",
-    "object_freeze",
-    "object_is_frozen",
-    "object_is_sealed",
     "promise_result_symbol",
     "promise_state_symbol",
     "reflect_apply",
-    "reflect_construct",
     "to_string_tag_symbol",
-    "object_to_string",
-    "species_symbol",
-    "match_symbol",
-    "replace_symbol",
-    "search_symbol",
-    "split_symbol",
   ];
 
   var filtered_exports = {};