Merge bleeding_edge 17696:18016.

test/mjsunit/regress/regress-3010.js

Index: test/mjsunit/regress/regress-3010.js
diff --git a/test/mjsunit/regress/regress-2717.js b/test/mjsunit/regress/regress-3010.js
similarity index 67%
copy from test/mjsunit/regress/regress-2717.js
copy to test/mjsunit/regress/regress-3010.js
index 4f8f7915b1c43e48235e7bd6bcb79f89957223cf..7aeec648280b8108e7b3254859c0defc9f242e16 100644
--- a/test/mjsunit/regress/regress-2717.js
+++ b/test/mjsunit/regress/regress-3010.js
@@ -25,27 +25,41 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Test re-initializing existing field which is already being tracked as
-// having double representation.
 (function() {
-  function test1(a) {
-    return { x: 1.5, x: a };
-  };
+  function testOneSize(current_size) {
+    var eval_string = 'obj = {';
+    for (var current = 0; current <= current_size; ++current) {
+      eval_string += 'k' + current + ':' + current + ','
+    }
+    eval_string += '};';
+    eval(eval_string);
+    for (var i = 0; i <= current_size; i++) {
+      assertEquals(i, obj['k'+i]);
+    }
+    var current_number = 0;
+    for (var x in obj) {
+      assertEquals(current_number, obj[x]);
+      current_number++;
+    }
+  }
 
-  assertEquals({}, test1({}).x);
-})();
+  testOneSize(127);
+  testOneSize(128);
+  testOneSize(129);
 
-// Test initializing new field which follows an existing transition to a
-// map that tracks it as having double representation.
-(function() {
-  function test1(a) {
-    return { y: a };
-  };
+  testOneSize(255);
+  testOneSize(256);
+  testOneSize(257);
+
+  testOneSize(511);
+  testOneSize(512);
+  testOneSize(513);
 
-  function test2(a) {
-    return { y: a };
-  };
+  testOneSize(1023);
+  testOneSize(1024);
+  testOneSize(1025);
 
-  assertEquals(1.5, test1(1.5).y);
-  assertEquals({}, test2({}).y);
-})();
+  testOneSize(2047);
+  testOneSize(2048);
+  testOneSize(2049);
+}())