Typescript: Code action implement inherited abstract class will override the class body

[mjbvz]

From @yaohaizh on April 11, 2018 1:54

• VSCode Version: 1.22
• OS Version: Windows 10

Steps to Reproduce:

1. Typescript code:

abstract class Base {
    abstract getProperty() : void;
}


class Subclass extends Base {
    // This is comment
}

2. Select the SubClass and trigger the code action, invoke it

Expected: The new code should insert after the comment or other existing code

Actually: The existing code is overwrote.

Does this issue occur when all extensions are disabled?: Yes

Copied from original issue: microsoft/vscode#47623

[mjbvz]

Confirmed with TypeScript 2.9.0-dev20180409