Basic name poisoning support (#4654)

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https://github.com/carbon-language/carbon-lang/issues/4622
When using an unqualified name, disallow declaring that name in all
scopes that would make it ambiguous in retrospect.
Doesn't include support for poisoning in `impl library` (see new test
for that with TODO).
Implemented by introduce `InstId::PoisonedName` and entries with it to
`NameScope`.

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Co-authored-by: Dana Jansens <danakj@orodu.net>
Co-authored-by: Richard Smith <richard@metafoo.co.uk>
Co-authored-by: Geoff Romer <gromer@google.com>
Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
Co-authored-by: josh11b <josh11b@users.noreply.github.com>
Co-authored-by: josh11b <15258583+josh11b@users.noreply.github.com>
Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
Co-authored-by: Carbon Infra Bot <carbon-external-infra@google.com>

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This commit is contained in:

Boaz Brickner

2024-12-17 21:08:26 +00:00

committed by GitHub

co-authored by Dana Jansens Richard Smith Geoff Romer Jon Ross-Perkins josh11b josh11b Chandler Carruth Carbon Infra Bot

parent 6b3307c520

commit 9c8773da1b

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