[clangd] NFC: Document URIDistance
`URIDistance` constructor should mention that `Sources` must contain
*absolute paths*, not URIs. This is not very clear when looking at the
interface, especially given that `distance(...)` accepts `URI`, not an
absolute path which can give the wrong impression.
Reviewed By: sammccall
Differential Revision: https://reviews.llvm.org/D51691
git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@341639 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed
