[SE-0478] Revise per-file default isolation to use a new using
syntax.#2870
Open
hborla wants to merge 2 commits intoswiftlang:mainfrom
Open
[SE-0478] Revise per-file default isolation to use a new `using` syntax.#2870hborla wants to merge 2 commits intoswiftlang:mainfrom
hborla wants to merge 2 commits intoswiftlang:mainfrom