Enable map dependency to in-flight compilation info.

test/mjsunit/compiler/parallel-proto-change.js

 // 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: --allow-natives-syntax --parallel-recompilation
+// Flags: --allow-natives-syntax
+// Flags: --parallel-recompilation --parallel-recompilation-delay=50
+
+function assertUnoptimized(fun) {
+  assertTrue(%GetOptimizationStatus(fun) != 1);
+}
 
 function f(foo) { return foo.bar(); }
 
 var o = {};
 o.__proto__ = { __proto__: { bar: function() { return 1; } } };
 
 assertEquals(1, f(o));
 assertEquals(1, f(o));
 
 %OptimizeFunctionOnNextCall(f, "parallel");
-assertEquals(1, f(o));
-// Change the prototype chain during optimization.
+assertEquals(1, f(o));     // Trigger optimization.
+assertUnoptimized(f);      // Optimization not yet done.
+// Change the prototype chain during optimization to trigger map invalidation.
 o.__proto__.__proto__ = { bar: function() { return 2; } };
-
-%WaitUntilOptimized(f);
-
+%CompleteOptimization(f);  // Conclude optimization with...
+assertUnoptimized(f);      // ... bailing out due to map dependency.
 assertEquals(2, f(o));