Better diagnostic of tests.

test/mjsunit/array-splice.js

Index: test/mjsunit/array-splice.js
diff --git a/test/mjsunit/array-splice.js b/test/mjsunit/array-splice.js
index 8e2789b152c22e3e414a98df0f43a157b0efef91..887097db61c151d82a41ffb11f9b17395954130b 100644
--- a/test/mjsunit/array-splice.js
+++ b/test/mjsunit/array-splice.js
@@ -31,13 +31,13 @@
     var array = new Array(10);
     var spliced = array.splice(1, 1, 'one', 'two');
     assertEquals(1, spliced.length);
-    assertFalse(0 in spliced);
+    assertFalse(0 in spliced, "0 in spliced");
 
     assertEquals(11, array.length);
-    assertFalse(0 in array);
+    assertFalse(0 in array, "0 in array");
     assertTrue(1 in array);
     assertTrue(2 in array);
-    assertFalse(3 in array);
+    assertFalse(3 in array, "3 in array");
   }
 })();
 
@@ -270,23 +270,23 @@
     assertEquals(undefined, array[7]);
 
     // and now check hasOwnProperty
-    assertFalse(array.hasOwnProperty(0));
-    assertFalse(array.hasOwnProperty(1));
+    assertFalse(array.hasOwnProperty(0), "array.hasOwnProperty(0)");
+    assertFalse(array.hasOwnProperty(1), "array.hasOwnProperty(1)");
     assertTrue(array.hasOwnProperty(2));
     assertTrue(array.hasOwnProperty(3));
     assertTrue(array.hasOwnProperty(4));
-    assertFalse(array.hasOwnProperty(5));
-    assertFalse(array.hasOwnProperty(6));
-    assertFalse(array.hasOwnProperty(7));
+    assertFalse(array.hasOwnProperty(5), "array.hasOwnProperty(5)");
+    assertFalse(array.hasOwnProperty(6), "array.hasOwnProperty(6)");
+    assertFalse(array.hasOwnProperty(7), "array.hasOwnProperty(7)");
     assertTrue(array.hasOwnProperty(8));
-    assertFalse(array.hasOwnProperty(9));
+    assertFalse(array.hasOwnProperty(9), "array.hasOwnProperty(9)");
 
     // and now check couple of indices above length.
-    assertFalse(array.hasOwnProperty(10));
-    assertFalse(array.hasOwnProperty(15));
-    assertFalse(array.hasOwnProperty(31));
-    assertFalse(array.hasOwnProperty(63));
-    assertFalse(array.hasOwnProperty(2 << 32 - 1));
+    assertFalse(array.hasOwnProperty(10), "array.hasOwnProperty(10)");
+    assertFalse(array.hasOwnProperty(15), "array.hasOwnProperty(15)");
+    assertFalse(array.hasOwnProperty(31), "array.hasOwnProperty(31)");
+    assertFalse(array.hasOwnProperty(63), "array.hasOwnProperty(63)");
+    assertFalse(array.hasOwnProperty(2 << 32 - 1), "array.hasOwnProperty(2 << 31 - 1)");
   }
 })();
 
@@ -314,7 +314,7 @@
     var a = [7, 8, 9];
     a.splice(0, 0, 1, 2, 3, 4, 5, 6);
     assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9], a);
-    assertFalse(a.hasOwnProperty(10));
+    assertFalse(a.hasOwnProperty(10), "a.hasOwnProperty(10)");
     assertEquals(undefined, a[10]);
   }
 })();