Allan Shortlidge d8fac32dd8 Sema: Fix a crash in migrate mode for MemberImportVisibility. ...

`TypeChecker::resolveDeclRefExpr()` would leave error nodes in the AST when
performing fallback name lookups with `MemberImportVisibility`. When running in
migration mode for `MemberImportVisibility`, these error nodes would then cause
the compiler to either diagnose a missing error or to crash during SILGen.

Instead of restricting name lookup during `TypeChecker::resolveDeclRefExpr()`,
allow it to find candidates with missing imports and then diagnose them if
necessary before forming a resolve decl ref.

Resolves rdar://154361861.

2025-09-15 20:48:06 -07:00

99 KiB

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