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diff --git a/deps/v8/test/mjsunit/regress/regress-123512.js b/deps/v8/test/mjsunit/regress/regress-123512.js
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--- a/deps/v8/test/mjsunit/regress/regress-123512.js
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@@ -1,78 +0,0 @@
-// 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.
-
-// Flags: --allow-natives-syntax
-
-// Test that boilerplate objects for array literals with non-constant
-// elements (which will contain the hole at non-constant positions) will
-// not cause prototype chain lookups when generating optimized code.
-
-function f(x) {
- return [x][0];
-}
-
-// Test data element on prototype.
-Object.prototype[0] = 23;
-assertSame(1, f(1));
-assertSame(2, f(2));
-%OptimizeFunctionOnNextCall(f);
-assertSame(3, f(3));
-%DeoptimizeFunction(f);
-
-// Test accessor element on prototype.
-Object.prototype.__defineGetter__(0, function() { throw Error(); });
-assertSame(4, f(4));
-assertSame(5, f(5));
-%OptimizeFunctionOnNextCall(f);
-assertSame(6, f(6));
-%DeoptimizeFunction(f);
-
-// Test the same on boilerplate objects for object literals that contain
-// both non-constant properties and non-constant elements.
-
-function g(x, y) {
- var o = { foo:x, 0:y };
- return o.foo + o[0];
-}
-
-// Test data property and element on prototype.
-Object.prototype[0] = 23;
-Object.prototype.foo = 42;
-assertSame(3, g(1, 2));
-assertSame(5, g(2, 3));
-%OptimizeFunctionOnNextCall(g);
-assertSame(7, g(3, 4));
-%DeoptimizeFunction(g);
-
-// Test accessor property and element on prototype.
-Object.prototype.__defineGetter__(0, function() { throw Error(); });
-Object.prototype.__defineGetter__('foo', function() { throw Error(); });
-assertSame(3, g(1, 2));
-assertSame(5, g(2, 3));
-%OptimizeFunctionOnNextCall(g);
-assertSame(7, g(3, 4));
-%DeoptimizeFunction(g);