RFR: [9] Fix Shenandoah non-PCH build

[Aleksey Shipilev]

On 03/14/2018 10:55 AM, Aleksey Shipilev wrote:
> On 03/14/2018 01:46 AM, Zhengyu Gu wrote:
>> Webrev: http://cr.openjdk.java.net/~zgu/shenandoah/sh-jdk9-non-PCH/webrev.00/
> 
> Good!

Oh, this is still not pushed? We need this to unblock sh/jdk9 non-PCH builds.

Thanks,
-Aleksey