RFR: 7903660: Drop layout-inferring varargs invoker + add method handle factory

[Maurizio Cimadamore]

On Mon, 12 Feb 2024 14:15:46 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> Re. (2) - this is tricky, yes. I think perhaps some mention of that in the javadoc for the invoker factory might be a good thing? (e.g. all integral types are promoted to int/long, all floating point types are promoted to double).

In fact, if you look at my suggestion to have instance accessor and a record class for the invoker entity, we only need to add checks in the invoker factory (which doesn't seem overly bad?)

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PR Comment: https://git.openjdk.org/jextract/pull/205#issuecomment-1938763454