[clang-tools-extra] [clang-doc] Allow setting a base directory for hosted pages (PR #132482)

[Paul Kirth via cfe-commits]

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@@ -1,9 +1,10 @@
 function genLink(Ref) {
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ilovepi wrote:

Looks like the current directory was left around when we moved from relative paths to absolute. I don't think we can use that instead of base, though.

When I log what the CurrentDirectory is on docs.fuchsia.dev/cpp using chrome tools, it ends up empty, so I think we may still need to use Base. i'll take another look at the JS though.

https://github.com/llvm/llvm-project/pull/132482