VSCode - generate accessors fixup on readonly field removes modifier

[slaneyrw]

TypeScript Version: 3.6.2

Search Terms: VSCode generate accessors

Logged issue with VSCode repo, but they asked my to create an issue "upstream"
microsoft/vscode#81135

Steps to Reproduce:

1. Create private field with readonly modifier
2. Highlight line and generate accessors
3. get property created without set property ( correct ), but readonly modifier removed from field

Code

// before
class MyClass {

    private readonly _myField: number;

}


// after
class MyClass {

    private _myField: number;

    public get myField() {
        return this._myField;
    }
}

Expected behavior:

readonly modifier should remain on private field.
GET accessor created
SET accessor NOT created

Actual behavior:

readonly modifier is removed.
GET accessor created
SET accessor NOT created

Playground Link:

Related Issues: