Move error message makers off js builtins object.

src/js/weak-collection.js

Index: src/js/weak-collection.js
diff --git a/src/js/weak-collection.js b/src/js/weak-collection.js
index f729cb3d6f861c80b9b0a368c4b1b11294c24ec9..c4568f97f4f38e7f18893511b7f37c0bb1355d77 100644
--- a/src/js/weak-collection.js
+++ b/src/js/weak-collection.js
@@ -16,11 +16,13 @@ var GetHash;
 var GlobalObject = global.Object;
 var GlobalWeakMap = global.WeakMap;
 var GlobalWeakSet = global.WeakSet;
+var MakeTypeError;
 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol");
 
 utils.Import(function(from) {
   GetExistingHash = from.GetExistingHash;
   GetHash = from.GetHash;
+  MakeTypeError = from.MakeTypeError;
 });
 
 // -------------------------------------------------------------------