[turbofan] We can inline property access for all primitives.

test/mjsunit/compiler/boolean-protototype.js

Index: test/mjsunit/compiler/boolean-protototype.js
diff --git a/test/mjsunit/compiler/boolean-protototype.js b/test/mjsunit/compiler/boolean-protototype.js
new file mode 100644
index 0000000000000000000000000000000000000000..5e940d75aed53a3ec9eec678c4e1dfafb29d2d36
--- /dev/null
+++ b/test/mjsunit/compiler/boolean-protototype.js
@@ -0,0 +1,43 @@
+// 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
+
+function test1(s) {
+  return s.toString;
+}
+assertSame(test1(false), Boolean.prototype.toString);
+assertSame(test1(true), Boolean.prototype.toString);
+%OptimizeFunctionOnNextCall(test1);
+assertSame(test1(false), Boolean.prototype.toString);
+assertSame(test1(true), Boolean.prototype.toString);
+
+function test2(s) {
+  return s.valueOf;
+}
+assertSame(test2(false), Boolean.prototype.valueOf);
+assertSame(test2(true), Boolean.prototype.valueOf);
+%OptimizeFunctionOnNextCall(test2);
+assertSame(test2(false), Boolean.prototype.valueOf);
+assertSame(test2(true), Boolean.prototype.valueOf);
+
+Boolean.prototype.foo = 42;
+function test3(s) {
+  return s["foo"];
+}
+assertEquals(test3(false), 42);
+assertEquals(test3(true), 42);
+%OptimizeFunctionOnNextCall(test3);
+assertEquals(test3(false), 42);
+assertEquals(test3(true), 42);
+
+Boolean.prototype.bar = function bar() { "use strict"; return this; }
+function test4(s) {
+  return s.bar();
+}
+assertEquals(test4(false), false);
+assertEquals(test4(true), true);
+%OptimizeFunctionOnNextCall(test4);
+assertEquals(test4(false), false);
+assertEquals(test4(true), true);