Fix sequence of element access in array builtins.

test/mjsunit/regress/regress-1790.js

Index: test/mjsunit/regress/regress-1790.js
diff --git a/test/mjsunit/regress/regress-1790.js b/test/mjsunit/regress/regress-1790.js
new file mode 100644
index 0000000000000000000000000000000000000000..8848eeaf6d65844a100b1ea496ff87df0a437527
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+++ b/test/mjsunit/regress/regress-1790.js
@@ -0,0 +1,58 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+// OWNER OR 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.
+
+// Regression test checking that the sequence of element access in built-in
+// array functions is specification conform (i.e. [[HasProperty]] might return
+// bogus result after [[Get]] has been called).
+
+function CheckSequence(builtin, callback) {
+  var array = [1,2,3];
+  var callback_count = 0;
+  var callback_wrapper = function() {
+    callback_count++;
+    return callback()
+  }
+
+  // Define getter that will delete itself upon first invocation.
+  Object.defineProperty(array, '1', {
+    get: function () { delete array[1]; },
+    configurable: true
+  });
+
+  assertTrue(array.hasOwnProperty('1'));
+  builtin.apply(array, [callback_wrapper, 'argument']);
+  assertFalse(array.hasOwnProperty('1'));
+  assertEquals(3, callback_count);
+}
+
+CheckSequence(Array.prototype.every,       function() { return true; });
+CheckSequence(Array.prototype.filter,      function() { return true; });
+CheckSequence(Array.prototype.forEach,     function() { return 0; });
+CheckSequence(Array.prototype.map,         function() { return 0; });
+CheckSequence(Array.prototype.reduce,      function() { return 0; });
+CheckSequence(Array.prototype.reduceRight, function() { return 0; });
+CheckSequence(Array.prototype.some,        function() { return false; });