Disable optimization for functions that have scopes that cannot be reconstructed from the context c…

test/mjsunit/regress/regress-2071.js

+// Copyright 2012 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.
+
+a = {};
+
+a.b = 42;
+
+with(a) {
+  a.f = (function f1() {
+    function f2() {
+      print(b);

[Jakob Kummerow, 2012/05/18 09:09:18]

nit: is this print() statement needed?

+      return b;
+    };
+    return f2;
+  })();
+}
+
+for(var i = 0; i < 10000; i++) {

[Jakob Kummerow, 2012/05/18 09:09:18]

nit: I think 1000 iterations is enough. Let's let the test suite run a little
faster :-)

+  assertEquals(42, a.f());
+}
+
+with(a) {
+  a.g = (function f1() {
+    function f2() {
+      function f3() {
+        return b;
+      }
+      return f3;
+    };
+    return f2();
+  })();
+}
+
+for(var i = 0; i < 10000; i++) {
+  assertEquals(42, a.g());
+}
+
+function outer() {
+  with(a) {
+    a.h = (function f1() {
+      function f2() {
+        function f3() {
+          return b;
+        }
+        return f3;
+      };
+      return f2();
+    })();
+  }
+};
+
+outer();
+
+for(var i = 0; i < 10000; i++) {
+  assertEquals(42, a.h());
+}