text: load("201224b0d1c296b45befd2285e95dd42.js");
  // Basic breakpoint test.
  
  var g = newGlobal();
  g.s = '';
  var handler = {
      hit: function (frame) {
          assertEq(this, handler);
          g.s += '1';
      }
  };
  var dbg = Debugger(g);
  dbg.onDebuggerStatement = function (frame) {
      g.s += '0';
      var line0 = frame.script.getOffsetLocation(frame.offset).lineNumber;
      var offs = frame.script.getLineOffsets(line0 + 2);
      for (var i = 0; i < offs.length; i++)
          frame.script.setBreakpoint(offs[i], handler);
  };
  g.eval("debugger;\n" +
         "s += 'a';\n" +  // line0 + 1
         "s += 'b';\n");  // line0 + 2
  assertEq(g.s, "0a1b");
  