[foreign-preview] RFR: 8281855: Rename ResourceScope to MemorySession

[Maurizio Cimadamore]

On Fri, 18 Feb 2022 09:56:05 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> Ultimately that all felt a bit too much.

To be clear, it felt too much not because the refactoring was complex (it was not) but because this creates a problem of how do you name the non-closeable entity (`MemorySessionView` is fine when returned by `MemorySegment::session`, less fine when accepted by `MemorySegment::allocateNative`). And if you give it a more general name, then you end up with two abstractions fighting for API visibility.

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PR: https://git.openjdk.java.net/panama-foreign/pull/641