Backport "fix: make vals created in desugaring of n-ary lambdas non-synthetic" to 3.7.4#24050

WojciechMazur merged 1 commit intorelease-3.7.4scala/scala3:release-3.7.4from

release-3.7.4_backport-23896scala/scala3:release-3.7.4_backport-23896Copy head branch name to clipboard