Function reserveNameInNestedScopes

test/fixtures/snapshot/typescript.js:114356–114361

(name)

            reservedNames = reservedNamesStack.pop();
        }
        function reserveNameInNestedScopes(name) {
            if (!reservedNames || reservedNames === ts.lastOrUndefined(reservedNamesStack)) {
                reservedNames = new ts.Set();
            }
            reservedNames.add(name);
        }
        function generateNames(node) {
            if (!node)
                return;