If the JIT compiler inlines the accessor, it must JIT that code when the containing method is called.
如果JIT编译器内联了该属性访问符，那么，当包含的方法被调用时，就必须JIT那些代码。
2
When functions are to be inlined, the compiler no longer inlines functions that are not executed frequently.
当需要内联函数时，编译器不再内联那些不常执行的函数。
3
As you can see, the compiler still removes the interface and still inlines each implementation of the getName() method. This is still quite optimal code.