RFR: Split out ContinuationEntry and ContinuationWrapper classes

[Coleen Phillimore]

On Thu, 14 Apr 2022 08:32:22 GMT, Ron Pressler <rpressler at openjdk.org> wrote:

>> Moved ContinuationEntry and ContinuationWrapper to their own files.
>> There's a bit of inconsistency because 3 ContinuationEntry functions are in ContinuationHelper_cpu.inline.hpp - maybe we should have continuationEntry_cpu.inline.hpp files for just the three.
>> I'd like to change the name ContinuationEntry to ContinuationAnchor or ContinuationFrameAnchor but want to study how that would look a bit more first.
>> Tested with other platforms and testing with loom-tier1 as sanity.
>
> src/hotspot/share/runtime/continuationWrapper.cpp line 94:
> 
>> 92: }
>> 93: 
>> 94: template<typename Event> void ContinuationWrapper::post_jfr_event(Event* e, JavaThread* jt) {
> 
> This method can be moved into FreezeThawBase in continuationFreezeThaw.cpp.

ok

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PR: https://git.openjdk.java.net/loom/pull/145