Migrate more tests from blink repository.

test/webkit/fast/js/function-toString-semicolon-insertion.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(
-"This tests that array construction via a host call works."
+"This test checks that functions re-string-ify in a way that is syntactically " +
+"compatible with concatenation."
 );
 
-function constructArray(arrayConstructor) {
-    return new arrayConstructor(100);
-}
-
-for (var i = 0; i < 3; ++i) {
-    var array = constructArray(Array);
-    shouldBeTrue("array instanceof Array");
-    shouldBe("array.length", "100");
-}
+shouldBe("(function(){return}).toString()", "'function () {return;}'");
+shouldBe("(function(){return }).toString()", "'function () {return; }'");
+shouldBe("(function(){return" + "\n" + "}).toString()", "'function () {return;" + "\\n" + "}'");
+shouldBe("(function(){}).toString()", "'function () {}'");
+shouldBe("(function(){ }).toString()", "'function () { }'");