Migrated several tests from blink to V8 repository.

test/webkit/do-while-semicolon.js

Index: test/webkit/do-while-semicolon.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/do-while-semicolon.js
similarity index 67%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/do-while-semicolon.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..cd7cf4c1028ce794b17dbb326b77804aec0d5ac1 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/do-while-semicolon.js
@@ -22,10 +22,46 @@
 // 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");