main
system hoisting and export refinements (#8104)
Simplify test fixtures (#16793)
Require output fixture extension to match sourceType output.
Improve comments generation (#14979)
fix(systemjs): support __proto__ as an export name (#18032)
fix: remove ExportNamedDeclaration when the specifier is empty (#10638)
fix(systemjs): export named from destructuring object (#14655)
Enable `external-helpers` by default in tests (#12911)