text: // Copyright 2013 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: --expose-debug-as debug --allow-natives-syntax
  
  Debug = debug.Debug;
  
  function listener(event, exec_state, event_data, data) {
    if (event != Debug.DebugEvent.Break) return;
    try {
      assertEquals("foo", exec_state.frame(0).evaluate("bar").value());
    } catch (e) {
      exception = e;
    };
    listened++;
  };
  
  var exception = null;
  var listened = 0;
  
  var f = function() {
    var bar = "foo";
    var baz = bar;  // Break point should be here.
    return bar;
  }
  
  var g = function() {
    var bar = "foo";
    var baz = bar;  // Break point should be here.
    return bar;
  }
  
  f();
  f();
  g();
  g();
  
  // Mark with builtin.
  %OptimizeFunctionOnNextCall(f);
  if (%IsParallelRecompilationSupported()) {
    %OptimizeFunctionOnNextCall(g, "parallel");
  }
  
  // Activate debugger.
  Debug.setListener(listener);
  
   // Set break point.
  Debug.setBreakPoint(f, 2, 0);
  Debug.setBreakPoint(g, 2, 0);
  
  // Trigger break point.
  f();
  g();
  
  // Assert that break point is set at expected location.
  assertTrue(Debug.showBreakPoints(f).indexOf("[B0]var baz = bar;") > 0);
  assertTrue(Debug.showBreakPoints(g).indexOf("[B0]var baz = bar;") > 0);
  
  assertEquals(2, listened);
  assertNull(exception);
  