RFR: 7903630: jextract emits duplicate symbols for macro clashing with enum constants [v2]

[Athijegannathan Sundararajan]

On Tue, 16 Jan 2024 12:06:40 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> The removal of `EnumConstantLifter` caused certain name conflicts to go undetected by `DuplicateFilter`. More specifically, if a macro constant has same name as that of an enum constant, given the enum constant is no longer lifted to toplevel, `DuplicateFilter` will not see the clash. The fix is to tweak `DuplicateFilter` to recurse into enums.
>
> Maurizio Cimadamore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add extra test case

LGTM

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Marked as reviewed by sundar (Committer).

PR Review: https://git.openjdk.org/jextract/pull/177#pullrequestreview-1823177061