tsserver: newly added files aren't consider being part of tsconfig.json until restart of the server

[dbaeumer]

Steps to reproduce:

• VSCode, empty workspace
• add file provide.ts with the following content:

export function provide(): void {
}

Observe: you get a message about a missing module system configuration

• add a tsconfig.json file and restart VSCode (see tsserver: tsconfig.json not honored for files that already exist in workspace #3244 why)
• add a second file provide2.ts with the following content:

export function provide2() {
}

Observe: you get AGAIN the message about a missing module system and you need to refresh VSCode. Looks like that the new file is added into a virtual project instead of being covered by the project configured by the tsconfig.json file.

[mhegazy]

@hoanhtien is looking into this.

[zhengbli]

Should be fixed in #4023. could you give it a try?

[dbaeumer]

Tested it with master and it works for me.

[mhegazy]

Thanks @dbaeumer for verifying.