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Colby Mchenry
51000e3a92
A Go defined type (`type WatchChan <-chan WatchResponse`, gin's `type HandlerFunc func(*Context)` and `type HandlersChain []HandlerFunc`) is a `type_alias` node, and it referenced nothing: only an `=` alias (#2417) named the types on its right-hand side. Impact on `WatchResponse` or gin's `Context` missed the declarations built from them, and everything that uses those. Fix (TS extractor and the Rust kernel, mirrored): goAliasTypeNames / alias_type_names walk the `type` field of every type_alias node, a defined type's as well as an alias's, so each type it names becomes a `references` ref on that name, where resolution reads the package qualifier back. Still skipped: the declaration's own type parameters, Go's predeclared types, and now its own name written bare, which in a recursive type (prometheus' `type stateFn func(*Lexer) stateFn`) is the declaration itself: no self-edge, and no failed row that would make dead code treat every namesake as referenced. A qualified name is never skipped (`type PutResponse pb.PutResponse` names pb's). Resolution is unchanged. A defined type is a new type: goAliasTarget still follows `=` aliases only, so a method called on a defined type is not looked up on its underlying type. The gateTargetKind rule that leaves a type_alias's reference written through a package the index doesn't know unresolved now covers defined types too; without it, every such name bound to the same-file declaration of its name (`type Op clientv3.Op` linked itself). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>