=== tests/cases/conformance/jsdoc/test.js ===
// all 6 should error on return statement/expression
/** @type {(x: number) => string} */
function h(x) { return x }
>h : (x: number) => string
>x : number
>x : number

/** @type {(x: number) => string} */
var f = x => x
>f : (x: number) => string
>x => x : (x: number) => string
>x : number
>x : number

/** @type {(x: number) => string} */
var g = function (x) { return x }
>g : (x: number) => string
>function (x) { return x } : (x: number) => string
>x : number
>x : number

/** @type {{ (x: number): string }} */
function i(x) { return x }
>i : (x: number) => string
>x : number
>x : number

/** @type {{ (x: number): string }} */
var j = x => x
>j : (x: number) => string
>x => x : (x: number) => string
>x : number
>x : number

/** @type {{ (x: number): string }} */
var k = function (x) { return x }
>k : (x: number) => string
>function (x) { return x } : (x: number) => string
>x : number
>x : number