[jdk21u-dev] RFR: 8313882: Fix -Wconversion warnings in runtime code

[Aleksey Shipilev]

On Mon, 24 Jun 2024 10:45:03 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Unclean backport to provide cleaner ground for future backports.
> 
> There were two minor conflicts in `attachListener.cpp` and `globals.hpp`.
> 
> Additional testing:
>  - [x] Linux x86_64 server fastdebug, `all`

On hold, I see that it breaks Graal due to field type change: [JDK-8314247](https://bugs.openjdk.org/browse/JDK-8314247). The underlying reason for this backport is to make [JDK-8327743](https://bugs.openjdk.org/browse/JDK-8327743) cleaner, but it might be too much of the risk to take for extra cleanliness.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/788#issuecomment-2228300476