RFR(M) 8219403: JVMCIRuntime::adjust_comp_level should be replaced

[dean.long at oracle.com]

Thanks Tom and Doug for the reviews.

dl

On 4/29/19 1:21 PM, Tom Rodriguez wrote:
> Looks good.
>
> tom
>
> dean.long at oracle.com wrote on 4/25/19 11:53 AM:
>> https://bugs.openjdk.java.net/browse/JDK-8219403
>> http://cr.openjdk.java.net/~dlong/8219403/webrev.2/
>>
>> This change removes the problematic JVMCIRuntime::adjust_comp_level.  It
>> is based on previous work in Graal, graal-jvmci-8, and Metropolis by 
>> Tom,
>> Doug, and Vladimir.
>>
>> I also problem-listed several tests that were causing noise in the 
>> test results.
>>
>> dl