A64: Synchronize with r15545.

test/webkit/do-while-semicolon.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
 //     documentation and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 description(
-"Tests the behavior of Array.prototype.concat while the array is having a bad time due to one of the elements we are concatenating."
+"This test checks that toString() round-trip on a function that has do..while in JavaScript does not insert extra semicolon."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function f1() {
+    do {} while(0);
+}
+
+function f2() {
+    do {} while(0)
+}
+
+function f3() {
+    do {} while(0)   ;
+}
+
+function f4() {
+    do {} while(0)  /*empty*/ ;
+}
 
 
+
+if (typeof uneval == "undefined")
+    uneval = function(x) { return '(' + x.toString()+ ')'; }
+
+
+uf1 = uneval(f1);
+ueuf1 = uneval(eval(uneval(f1)));
+
+uf2 = uneval(f2);
+ueuf2 = uneval(eval(uneval(f2)));
+
+uf3 = uneval(f3);
+ueuf3 = uneval(eval(uneval(f3)));
+
+uf4 = uneval(f4);
+ueuf4 = uneval(eval(uneval(f4)));
+
+
+
+shouldBe("ueuf1", "uf1");
+shouldBe("ueuf2", "uf2");
+shouldBe("ueuf3", "uf3");
+shouldBe("ueuf4", "uf4");