Remove prototype of global builtins object.

test/mjsunit/regress/regress-2284.js

Index: test/mjsunit/regress/regress-2284.js
diff --git a/test/mjsunit/regress/regress-1898.js b/test/mjsunit/regress/regress-2284.js
similarity index 92%
copy from test/mjsunit/regress/regress-1898.js
copy to test/mjsunit/regress/regress-2284.js
index 5440446fbf78ca593e8748cd54ea2aefad047542..561401998ad84e75e8baa2fd85b9a10bf8211535 100644
--- a/test/mjsunit/regress/regress-1898.js
+++ b/test/mjsunit/regress/regress-2284.js
@@ -27,11 +27,6 @@
 
 // Flags: --allow-natives-syntax
 
-function f(x) {
-  Math.log(Math.min(0.1, Math.abs(x)));
-}
-
-f(0.1);
-f(0.1);
-%OptimizeFunctionOnNextCall(f);
-f(0.1);
+assertThrows("%foobar();", TypeError);
+assertThrows("%constructor();", TypeError);
+assertThrows("%constructor(23);", TypeError);