RFR: 8210066: [JVMCI] iterateFrames uses wrong GrowableArray API for appending

[dean.long at oracle.com]

Looks good!

dl

On 8/29/18 8:06 AM, Doug Simon wrote:
> Please review this small patch to fix an incorrect usage of GrowableArray that can leads to an assertion failure in a fastdebug VM.
>
> Many thanks to Gilles Duboscq for the test showing the problem and confirming that the fix works.
>
> https://bugs.openjdk.java.net/browse/JDK-8210066
> http://cr.openjdk.java.net/~dnsimon/8210066/
>
> Testing: hs-tier3-graal
>
> -Doug