Dana Jansens f51c075f8b Avoid symbolic witnesses for .Self in an impl decl (#7564) ...

Point symbolic witnesses into `.Self` written inside an impl decl at the
impl that is being declared. This is tricky because the impl does not
yet exist. So we use a new instruction `ImplSelfWitness` which _will_ be
replaced by the `ImplWitness` once it becomes available. The
`ImplSelfWitness` acts like a symbolic witness, except it does not
perform lookup, since we know which impl we will get a witness from.

This prevents us from finding other impls when performing lookups into
`.Self` in an impl decl, which produces incorrect/incoherent results.

2026-07-29 16:25:23 +00:00

..

basics.carbon

Omit empty observe: blocks from formatted SemIR. (#7487)

2026-07-13 20:38:19 +00:00

bound_values.carbon

Avoid symbolic witnesses for .Self in an impl decl (#7564)

2026-07-29 16:25:23 +00:00

element_mismatches.carbon

Introduce Diagnostics::ContextScope and remove diagnoser callbacks in type completion (#6761)

2026-02-25 15:15:29 +00:00

import.carbon

Avoid symbolic witnesses for .Self in an impl decl (#7564)

2026-07-29 16:25:23 +00:00

index_not_literal.carbon

Omit empty observe: blocks from formatted SemIR. (#7487)

2026-07-13 20:38:19 +00:00

init_dependent_bound.carbon

Omit empty observe: blocks from formatted SemIR. (#7487)

2026-07-13 20:38:19 +00:00