C++: Port changes from github/codeql#21360#332

Merged

ropwareJB merged 3 commits intomainfrom

unbreak-changes-2

Feb 24, 2026

Commits on Feb 24, 2026

C++: Provide barrier node API without the unit column when instantiating non-parameterized barrier guards.
MathiasVP
committed
C++: Add change note.
MathiasVP
committed
C++: Make a test slightly more verbose to catch this issue in the future.
MathiasVP
committed