Add a test case for issue 618

Review URL: http://codereview.chromium.org/647014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3898 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/objects.cc

@@ -4845,12 +4845,6 @@ bool SharedFunctionInfo::CanGenerateInlineConstructor(Object* prototype) {
        obj != Heap::null_value();
        obj = obj->GetPrototype()) {
     JSObject* js_object = JSObject::cast(obj);
-    if (!js_object->HasFastProperties()) {
-      // Only allow fast case objects, as the map check in the inline
-      // constructor which check for changes to the prototype chain cannot
-      // handle dictionary case objects.
-      return false;
-    }
     for (int i = 0; i < this_property_assignments_count(); i++) {
       LookupResult result;
       String* name = GetThisPropertyAssignmentName(i);

test/mjsunit/bugs/618.js

@@ -0,0 +1,86 @@
+// Copyright 2010 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.
+
+// Simple class using inline constructor.
+function C1() {
+  this.x = 23;
+};
+var c1 = new C1();
+assertEquals(23, c1.x);
+assertEquals("undefined", typeof c1.y);
+  
+// Add setter somewhere on the prototype chain after having constructed the
+// first instance.
+C1.prototype = { set x(value) { this.y = 23; } };
+var c1 = new C1();
+assertEquals("undefined", typeof c1.x);
+assertEquals(23, c1.y);
+  
+// Simple class using inline constructor.
+function C2() {
+  this.x = 23;
+};
+var c2 = new C2();
+assertEquals(23, c2.x);
+assertEquals("undefined", typeof c2.y);
+
+// Add setter somewhere on the prototype chain after having constructed the
+// first instance.
+C2.prototype.__proto__ = { set x(value) { this.y = 23; } };
+var c2 = new C2();
+assertEquals("undefined", typeof c2.x);
+assertEquals(23, c2.y);
+
+// Simple class using inline constructor.
+function C3() {
+  this.x = 23;
+};
+var c3 = new C3();
+assertEquals(23, c3.x);
+assertEquals("undefined", typeof c3.y);
+
+// Add setter somewhere on the prototype chain after having constructed the
+// first instance.
+C3.prototype.__defineSetter__('x', function(value) { this.y = 23; });
+var c3 = new C3();
+assertEquals("undefined", typeof c3.x);
+assertEquals(23, c3.y);
+
+// Simple class using inline constructor.
+function C4() {
+  this.x = 23;
+};
+var c4 = new C4();
+assertEquals(23, c4.x);
+assertEquals("undefined", typeof c4.y);
+
+// Add setter somewhere on the prototype chain after having constructed the
+// first instance.
+C4.prototype.__proto__.__defineSetter__('x', function(value) { this.y = 23; });
+var c4 = new C4();
+assertEquals("undefined", typeof c4.x);
+assertEquals(23, c4.y);