RFR: 8257910: [JVMCI] Set exception_seen accordingly in the runtime. [v3]

[Vladimir Kozlov]

On Thu, 10 Dec 2020 13:19:52 GMT, Yudi Zheng <yzheng at openjdk.org> wrote:

>> Update exception_seen flag in the MDO when no exception handler is found for caller during deoptimization, or when exception is thrown in the runtime.
>> 
>> Plus, `-Xlog:exceptions=info` code and `AbortVMOnException` are adjusted in C1 runtime and jvmci runtime to be consistent with C2, i.e., before `JvmtiExport::can_post_on_exceptions` deoptimization and fast continuation when compiled handler is found.
>
> Yudi Zheng has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Address comments.

Looks good. Unfortunately it missed JDK16 fork but because it is P3 bug it can be fixed there without approval for now (RDP1 phase).
Please, create PR based on https://github.com/openjdk/jdk16 (create your fork for it) and I will approve it. After push the fix will be auto-forwarded into JDK 17 (current  https://github.com/openjdk/jdk)

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Changes requested by kvn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/1713