Recompile with nilAsReceiver monkeypatch.

src/Benchfib.js

@@ -1,5 +1,6 @@
 define(["amber/boot", "amber_core/Kernel-Objects"], function($boot){"use strict";
-var $core=$boot.api,nil=$boot.nil,$recv=$boot.asReceiver,$globals=$boot.globals;
+if(!$boot.nilAsReceiver)$boot.nilAsReceiver=$boot.nil;
+var $core=$boot.api,nil=$boot.nilAsReceiver,$recv=$boot.asReceiver,$globals=$boot.globals;
 if(!$boot.nilAsClass)$boot.nilAsClass=$boot.dnu;
 $core.addPackage('Benchfib');
 $core.packages["Benchfib"].innerEval = function (expr) { return eval(expr); };

src/Examples.js

@@ -1,5 +1,6 @@
 define(["amber/boot", "amber/web/Web"], function($boot){"use strict";
-var $core=$boot.api,nil=$boot.nil,$recv=$boot.asReceiver,$globals=$boot.globals;
+if(!$boot.nilAsReceiver)$boot.nilAsReceiver=$boot.nil;
+var $core=$boot.api,nil=$boot.nilAsReceiver,$recv=$boot.asReceiver,$globals=$boot.globals;
 if(!$boot.nilAsClass)$boot.nilAsClass=$boot.dnu;
 $core.addPackage('Examples');
 $core.packages["Examples"].innerEval = function (expr) { return eval(expr); };

src/IDE.js

@@ -7,7 +7,8 @@ define(["amber/boot"
 
 //>>excludeEnd("imports");
 ){"use strict";
-var $core=$boot.api,nil=$boot.nil,$recv=$boot.asReceiver,$globals=$boot.globals;
+if(!$boot.nilAsReceiver)$boot.nilAsReceiver=$boot.nil;
+var $core=$boot.api,nil=$boot.nilAsReceiver,$recv=$boot.asReceiver,$globals=$boot.globals;
 if(!$boot.nilAsClass)$boot.nilAsClass=$boot.dnu;
 $core.addPackage('IDE');
 $core.packages["IDE"].innerEval = function (expr) { return eval(expr); };