[foreign-abi] Integrated: 8254156: Simplify ABI classification logic

[Maurizio Cimadamore]

On Wed, 7 Oct 2020 11:39:50 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> This patch reverts recent changes to introduce a public CValueLayout class; the realization here is that, after all,
> CValueLayout exposes a public `Type` enum which is used by ABI classification. So, instead of using subclassing (which
> is messy and tedious with immutable data structures with covariant overrides), let's just double down on layout
> attributes, get rid of CValueLayout and simply expose the Type enum (now renamed to TypeKind).

This pull request has now been integrated.

Changeset: 6663aabe
Author:    Maurizio Cimadamore <mcimadamore at openjdk.org>
URL:       https://git.openjdk.java.net/panama-foreign/commit/6663aabe
Stats:     318 lines in 9 files changed: 43 ins; 153 del; 122 mod

8254156: Simplify ABI classification logic

Reviewed-by: jvernee

-------------

PR: https://git.openjdk.java.net/panama-foreign/pull/371