tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__asyncGenerator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__await' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
tests/cases/compiler/main.ts(1,25): error TS2343: This syntax requires an imported helper named '__generator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
tests/cases/compiler/main.ts(4,5): error TS2343: This syntax requires an imported helper named '__asyncDelegator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
tests/cases/compiler/main.ts(4,5): error TS2343: This syntax requires an imported helper named '__asyncValues' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.


==== tests/cases/compiler/main.ts (5 errors) ====
    export async function * f() {
                            ~
!!! error TS2343: This syntax requires an imported helper named '__asyncGenerator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
                            ~
!!! error TS2343: This syntax requires an imported helper named '__await' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
                            ~
!!! error TS2343: This syntax requires an imported helper named '__generator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
        await 1;
        yield 2;
        yield* [3];
        ~~~~~~~~~~
!!! error TS2343: This syntax requires an imported helper named '__asyncDelegator' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
        ~~~~~~~~~~
!!! error TS2343: This syntax requires an imported helper named '__asyncValues' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.
    }
    
==== tests/cases/compiler/tslib.d.ts (0 errors) ====
    export {}
    