Adapt tests in preparation of shipping --harmony-completion.

test/webkit/fast/js/basic-strict-mode.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 // 1.  Redistributions of source code must retain the above copyright
 //     notice, this list of conditions and the following disclaimer.
 // 2.  Redistributions in binary form must reproduce the above copyright
 //     notice, this list of conditions and the following disclaimer in the
@@ skipping 148 matching lines @@
 var global = this;
 shouldThrow("global.eval('\"use strict\"; if (0) ++arguments; true;')");
 shouldBeSyntaxError("'use strict'; ++(1, eval)");
 shouldBeSyntaxError("'use strict'; (1, eval)++");
 shouldBeSyntaxError("'use strict'; --(1, eval)");
 shouldBeSyntaxError("'use strict'; (1, eval)--");
 shouldBeSyntaxError("'use strict'; function f() { ++(1, arguments) }");
 shouldBeSyntaxError("'use strict'; function f() { (1, arguments)++ }");
 shouldBeSyntaxError("'use strict'; function f() { --(1, arguments) }");
 shouldBeSyntaxError("'use strict'; function f() { (1, arguments)-- }");
-shouldBeSyntaxError("'use strict'; if (0) delete +a.b");
-shouldBeSyntaxError("'use strict'; if (0) delete ++a.b");
-shouldBeSyntaxError("'use strict'; if (0) delete void a.b");
+shouldBeSyntaxError("'use strict'; undefined; if (0) delete +a.b");
+shouldBeSyntaxError("'use strict'; undefined; if (0) delete ++a.b");
+shouldBeSyntaxError("'use strict'; undefined; if (0) delete void a.b");
 
 shouldBeTrue("(function (a){'use strict'; a = false; return a !== arguments[0]; })(true)");
 shouldBeTrue("(function (a){'use strict'; arguments[0] = false; return a !== arguments[0]; })(true)");
 shouldBeTrue("(function (a){'use strict'; a=false; return arguments; })(true)[0]");
 shouldBeTrue("(function (a){'use strict'; arguments[0]=false; return a; })(true)");
 shouldBeTrue("(function (a){'use strict'; arguments[0]=true; return arguments; })(false)[0]");
 shouldBeTrue("(function (){'use strict';  arguments[0]=true; return arguments; })(false)[0]");
 shouldBeTrue("(function (a){'use strict'; arguments[0]=true; a=false; return arguments; })()[0]");
 shouldBeTrue("(function (a){'use strict'; arguments[0]=false; a=true; return a; })()");
 shouldBeTrue("(function (a){'use strict'; arguments[0]=true; return arguments; })()[0]");
@@ skipping 42 matching lines @@
 shouldBeTrue("(function () {'use strict';  try { throw 1; } catch (e) { aGlobal = true; }})(); aGlobal;");
 aGlobal = false;
 shouldBeTrue("try { throw 1; } catch (e) { aGlobal = true; }");
 aGlobal = false;
 shouldBeTrue("(function () { try { throw 1; } catch (e) { aGlobal = true; }})(); aGlobal;");
 aGlobal = false;
 shouldBeTrue("(function () {try { throw 1; } catch (e) { aGlobal = true; }})(); aGlobal;");
 
 // Make sure this doesn't crash!
 shouldBe('String(Object.getOwnPropertyDescriptor((function() { "use strict"; }).__proto__, "caller").get)', "'function () {\\n    [native code]\\n}'");