Migrated several tests from blink to V8 repository.

test/webkit/codegen-peephole-locals.js

Index: test/webkit/codegen-peephole-locals.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/codegen-peephole-locals.js
similarity index 52%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/codegen-peephole-locals.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..0fe60393602f61aab4b20159aba3e511b06727c0 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/codegen-peephole-locals.js
@@ -22,10 +22,85 @@
 // 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."
+"Tests whether peephole optimizations on bytecode properly deal with local registers."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function if_less_test()
+{
+    var a = 0;
+    var b = 2;
+    if (a = 1 < 2)
+        return a == 1;
+}
 
+shouldBeTrue("if_less_test()");
 
+function if_else_less_test()
+{
+    var a = 0;
+    var b = 2;
+    if (a = 1 < 2)
+        return a == 1;
+    else
+        return false;
+}
+
+shouldBeTrue("if_else_less_test()");
+
+function conditional_less_test()
+{
+    var a = 0;
+    var b = 2;
+    return (a = 1 < 2) ? a == 1 : false;
+}
+
+shouldBeTrue("conditional_less_test()");
+
+function logical_and_less_test()
+{
+    var a = 0;
+    var b = 2;
+    return (a = 1 < 2) && a == 1;
+}
+
+shouldBeTrue("logical_and_less_test()");
+
+function logical_or_less_test()
+{
+    var a = 0;
+    var b = 2;
+    var result = (a = 1 < 2) || a == 1;
+    return a == 1;
+}
+
+shouldBeTrue("logical_or_less_test()");
+
+function do_while_less_test()
+{
+    var a = 0;
+    var count = 0;
+    do {
+        if (count == 1)
+            return a == 1;
+        count++;
+    } while (a = 1 < 2)
+}
+
+shouldBeTrue("do_while_less_test()");
+
+function while_less_test()
+{
+    var a = 0;
+    while (a = 1 < 2)
+        return a == 1;
+}
+
+shouldBeTrue("while_less_test()");
+
+function for_less_test()
+{
+    for (var a = 0; a = 1 < 2; )
+        return a == 1;
+}
+
+shouldBeTrue("for_less_test()");