RFR: 8152311: allow JVMCI compiler to change the compilation policy for a method

[Doug Simon]

Note that this changes depends on https://bugs.openjdk.java.net/browse/JDK-8155023.

> On 05 May 2016, at 14:39, Doug Simon <doug.simon at oracle.com> wrote:
> 
> Please read the bug for a full description of this proposed change.
> 
> https://bugs.openjdk.java.net/browse/JDK-8152311
> http://cr.openjdk.java.net/~dnsimon/8152311/
> 
> -Doug