Merge `main` into `release/6.0`#742

Merged

ahoppen merged 4 commits intoswiftlang:release/6.0from

ahoppen:6.0/merge-main-2024-05-14

May 14, 2024

Commits on May 7, 2024

Merge adjacent .line and .docLine comments into a single element.
shawnhyam
committed

Commits on May 8, 2024

Improvements based on feedback and further testing.
shawnhyam
committed

Commits on May 9, 2024

Merge pull request #732 from shawnhyam/collect-line-comments
allevato
authored

Commits on May 14, 2024

Merge branch 'main' into release/6.0
ahoppen
committed