Destructuring an array into incompatible type no longer throws an error

[saravanaj]

TypeScript Version: 2.2.1 / 2.1.4

Code

let foo: Array<number> = [1, 2, 3, 4];
let bar: Array<number> = { ...foo };

When I try to compile with tsc@2.1.4, I get the following error:

error TS2322: Type '{ [n: number]: number; length: number; }' is not assignable to type 'number[]'.
Property 'push' is missing in type '{ [n: number]: number; length: number; }'.

With tsc@2.2.1 I no longer get an error. This should not compile as bar is not of type Array<number>.

[mhegazy]

Should be fixed in latest.