Tracks the VS Code side of microsoft/TypeScript#33564

Repo
On MacOS with VS Code insiders

For the project:

tsconfig.js

{
    "compilerOptions": {
        "module": "commonjs",
        "target": "es2016",
        "jsx": "react"
    }
}

src/main.ts

export function foo() {
    add
}

1. Open main.ts
2. Create a new file src/add.ts in VS Code

export function add() { }

1. Back in main.ts, try auto importing add

   🐛 Doesn't show up

2. In add, run the TypeScript: Go to project configuration command. This should open the tsconfig.json

   🐛 File is not part of any project

Investigation
Something seems busted with using any version of TypeScript + Electron 6 on MacOS. I've tested the following cases so far:

• MacOS, newest TS with VS Code Stable — ✅ works
• MacOS, stable TS with VS Code Stable — ✅ works
• MacOS, stable TS with VS Code insides — ❌ broken
• MacOS, newest TS with VS Code insides — ❌ broken
• MacOS, TS 3.3 (an old version) with VS Code insiders — ❌ broken
• Windows, any TS with VS Code Insiders — ✅ works

Behind the scenes, TS uses node's fs.watch by default so I suspect the bug is somewhere with that not firing events properly

As @RyanCavanaugh and @sheetalkamat brought up, we cannot fix this on the TS side old TS versions are also broken