Function getAsyncFromSyncIterationTypes

test/fixtures/snapshot/typescript.js:83210–83221

(iterationTypes, errorNode)

            return iterationTypes === noIterationTypes ? undefined : iterationTypes;
        }
        function getAsyncFromSyncIterationTypes(iterationTypes, errorNode) {
            if (iterationTypes === noIterationTypes)
                return noIterationTypes;
            if (iterationTypes === anyIterationTypes)
                return anyIterationTypes;
            var yieldType = iterationTypes.yieldType, returnType = iterationTypes.returnType, nextType = iterationTypes.nextType;
            // if we're requesting diagnostics, report errors for a missing `Awaited<T>`.
            if (errorNode) {
                getGlobalAwaitedSymbol(/*reportErrors*/ true);
            }
            return createIterationTypes(getAwaitedType(yieldType, errorNode) || anyType, getAwaitedType(returnType, errorNode) || anyType, nextType);
        }
        /**
         * Gets the *yield*, *return*, and *next* types from a non-union type.
         *