Bug 1406146 - Fix cross-compartment global issue in typedarary test. r=jandem

This is an artifact of the same-compartment realm changes. The test
confuses CCWs and WindowProxies.

Differential Revision: https://phabricator.services.mozilla.com/D26847

--HG--
extra : moz-landing-system : lando

js/src/tests/non262/extensions/typedarray.js

@@ -545,7 +545,7 @@ function test()
         check(() => b[90] == 5)
 
     // Protos and proxies, oh my!
-    var alien = newGlobal();
+    var alien = newGlobal({newCompartment: true});
 
     var alien_view = alien.eval('view = new Uint8Array(7)');
     var alien_buffer = alien.eval('buffer = view.buffer');