VSCode only de-duplicates references results for "go to references" requests but does not de-duplicate them for "find all references" requests. The result is that users see duplicate references for results in TypeScript files - one from the built-in TS extension and one from us. While this is an issue in VSCode (see https://github.com/microsoft/vscode/issues/117095) this commit provides a quick workaround on our end until it can be addressed there. This commit should be reverted when microsoft/vscode/issues/117095 is resolved. fixes https://github.com/angular/vscode-ng-language-service/issues/1124 PR Close #41041