[llvm-branch-commits] [clang] release/18.x: [clang][CoverageMapping] do not emit a gap region when either end doesn't have valid source locations (#89564) (PR #90369)

[Tom Stellard via llvm-branch-commits]

tstellar wrote:

Hi @whentojump (or anyone else). If you would like to add a note about this fix in the release notes (completely optional). Please reply to this comment with a one or two sentence description of the fix.  When you are done, please add the release:note label to this PR.

https://github.com/llvm/llvm-project/pull/90369