[turbofan] Don't try to inline non-inlineable functions.

test/mjsunit/compiler/regress-crbug-540593.js

Index: test/mjsunit/compiler/regress-crbug-540593.js
diff --git a/test/mjsunit/compiler/regress-crbug-540593.js b/test/mjsunit/compiler/regress-crbug-540593.js
new file mode 100644
index 0000000000000000000000000000000000000000..ec68e857711bf46d9e064398ac940e85d939e9f8
--- /dev/null
+++ b/test/mjsunit/compiler/regress-crbug-540593.js
@@ -0,0 +1,14 @@
+// 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: --allow-natives-syntax --enable-slow-asserts --turbo-inlining
+
+var __f_2 = (function(stdlib) {
+  "use asm";
+  var __v_3 = stdlib.Symbol;
+  function __f_2() { return __v_3(); }
+  return __f_2;
+})(this);
+%OptimizeFunctionOnNextCall(__f_2);
+__f_2();