[turbofan] Fix usage of ThisFunction parameter in OSR.

test/mjsunit/compiler/osr-function-id.js

Index: test/mjsunit/compiler/osr-function-id.js
diff --git a/test/mjsunit/compiler/osr-function-id.js b/test/mjsunit/compiler/osr-function-id.js
new file mode 100644
index 0000000000000000000000000000000000000000..c506ae8282f3ff58a82476a0315379e6a423d56a
--- /dev/null
+++ b/test/mjsunit/compiler/osr-function-id.js
@@ -0,0 +1,33 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --use-osr --turbo-osr
+
+function id(f) { return f; }
+
+function foo() {
+  var sum = 0;
+  var r = id(foo);
+  for (var i = 0; i < 100000; i++) {
+    sum += i;
+  }
+  return foo == r;
+}
+
+assertEquals(true, foo());
+assertEquals(true, foo());
+assertEquals(true, foo());
+
+
+function bar() {
+  var sum = 0;
+  for (var i = 0; i < 90000; i++) {
+    sum += i;
+  }
+  return id(bar,sum);
+}
+
+assertEquals(bar, bar());
+assertEquals(bar, bar());
+assertEquals(bar, bar());