hope can overwrite interface prototype type

[bluelovers]

TypeScript Version: 2.7.0-dev.201xxxxx

Search Terms:

Code

hope can overwrite interface prototype type

old interface

export interface OptionsJSDOM
{
    virtualConsole?: VirtualConsole,
}

new sub interface

export interface NewOptionsJSDOM extends OptionsJSDOM
{
    virtualConsole?: VirtualConsole | boolean,
}

Expected behavior:

export interface NewOptionsJSDOM extends OptionsJSDOM
{
    // @ts-overwrite
    virtualConsole?: VirtualConsole | boolean,
}

Actual behavior:

Playground Link:

Related Issues:

[mhegazy]

Please see #18762