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carbon-lang/toolchain
Boaz Brickner 23e5677c8e Avoid poisoning non identifier names (#4884)
There are different use cases where we call
`Context::LookupQualifiedName()` on non identifiers, like
`NameId::SelfType`, which implicitly triggers poisoning these names. I
don't think poisoning non identifiers like`Self` is ever useful.

Use cases where `Self` is being poisoned:
* Checking allowed access:
https://github.com/carbon-language/carbon-lang/blob/e257051612e4217295e206fd3274fc75e22d206a/toolchain/check/member_access.cpp#L62,
for example, in
https://github.com/carbon-language/carbon-lang/blob/e257051612e4217295e206fd3274fc75e22d206a/toolchain/check/testdata/alias/no_prelude/fail_aliased_name_in_diag.carbon#L21
* Using the type `Self` as a parameter type:
https://github.com/carbon-language/carbon-lang/blob/e257051612e4217295e206fd3274fc75e22d206a/core/prelude/operators/arithmetic.carbon#L78

Part of #4622.
2025-02-13 20:00:54 +00:00
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