=== tests/cases/compiler/inheritedFunctionAssignmentCompatibility.ts ===
interface IResultCallback extends Function { }
>IResultCallback : IResultCallback, Symbol(IResultCallback, Decl(inheritedFunctionAssignmentCompatibility.ts, 0, 0))
>Function : Function, Symbol(Function, Decl(lib.d.ts, 223, 38), Decl(lib.d.ts, 269, 11))

function fn(cb: IResultCallback) { }
>fn : (cb: IResultCallback) => void, Symbol(fn, Decl(inheritedFunctionAssignmentCompatibility.ts, 0, 46))
>cb : IResultCallback, Symbol(cb, Decl(inheritedFunctionAssignmentCompatibility.ts, 2, 12))
>IResultCallback : IResultCallback, Symbol(IResultCallback, Decl(inheritedFunctionAssignmentCompatibility.ts, 0, 0))

fn((a, b) => true);
>fn((a, b) => true) : void
>fn : (cb: IResultCallback) => void, Symbol(fn, Decl(inheritedFunctionAssignmentCompatibility.ts, 0, 46))
>(a, b) => true : (a: any, b: any) => boolean
>a : any, Symbol(a, Decl(inheritedFunctionAssignmentCompatibility.ts, 4, 4))
>b : any, Symbol(b, Decl(inheritedFunctionAssignmentCompatibility.ts, 4, 6))
>true : boolean

fn(function (a, b) { return true; })
>fn(function (a, b) { return true; }) : void
>fn : (cb: IResultCallback) => void, Symbol(fn, Decl(inheritedFunctionAssignmentCompatibility.ts, 0, 46))
>function (a, b) { return true; } : (a: any, b: any) => boolean
>a : any, Symbol(a, Decl(inheritedFunctionAssignmentCompatibility.ts, 5, 13))
>b : any, Symbol(b, Decl(inheritedFunctionAssignmentCompatibility.ts, 5, 15))
>true : boolean