swift-package-manager

fcb5bade - Add API needed for background indexing in SourceKit-LSP (#7562)

Add API needed for background indexing in SourceKit-LSP (#7562) - **Explanation**: Adds a couple of APIs to the `SourceKitLSPAPI` module that are needed for background indexing in SourceKit-LSP - **Scope**: Purely additive API - **Risk**: Very low, just adds new API - **Testing**: n/a - **Issue**: n/a - **Reviewer**: @MaxDesiatov and @bnbarham on https://github.com/apple/swift-package-manager/pull/7540 https://github.com/apple/swift-package-manager/pull/7555 respectively