[llvm] [llvm-cov] Coverage report HTML UI to jump between uncovered parts of code (PR #95662)

[Hana Dusíková via llvm-commits]

hanickadot wrote:

Motivation: I recently was writing tests for uncovered code in a long file and I spend a lot of time scrolling and looking for missing uncovered lines inside instantiation (to which the link "jump to first uncovered line" didn't even work.

https://github.com/llvm/llvm-project/pull/95662