text: // Copyright 2011 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: --harmony-simd --harmony-tostring  --harmony-reflect
  // Flags: --allow-natives-syntax --expose-natives-as natives --noalways-opt
  
  function testFloat32x4Prototype() {
    var a4 = SIMD.Float32x4(1.0, -2.0, 3.0, -4.0);
    SIMD.Float32x4.prototype = {};
    try {
      var x = SIMD.Float32x4.extractLane(a4, 0);
    } catch (o) {
      assertEquals(o instanceof TypeError, true);
      assertEquals(o.message, "<unknown message this is not a Float32x4 object.>");
    }
  }
  
  testFloat32x4Prototype();
  testFloat32x4Prototype();
  %OptimizeFunctionOnNextCall(testFloat32x4Prototype);
  testFloat32x4Prototype();
  
  function testInt32x4Prototype() {
    var a4 = SIMD.Int32x4(1.0, -2.0, 3.0, -4.0);
    SIMD.Int32x4.prototype = {};
    try {
      var x = SIMD.Int32x4.extractLane(a4, 0);
    } catch (o) {
      assertEquals(o instanceof TypeError, true);
      assertEquals(o.message, "<unknown message this is not a Int32x4 object.>");
    }
  }
  
  testInt32x4Prototype();
  testInt32x4Prototype();
  %OptimizeFunctionOnNextCall(testInt32x4Prototype);
  testInt32x4Prototype();
  