Create the named pipe server on the extension host

[alexdima]

This PR tries to work around a problem found in #142786 by creating the named pipe server on the extension host process and connecting to it from the renderer process.

This always fails to launch for me on a slow Windows VM. But after applying the following change things appear to work 🤯 :

diff --git a/src/vs/workbench/services/extensions/electron-browser/localProcessExtensionHost.ts b/src/vs/workbench/services/extensions/electron-browser/localProcessExtensionHost.ts
index 465993a2740..3ec9e5a9b8b 100644
--- a/src/vs/workbench/services/extensions/electron-browser/localProcessExtensionHost.ts
+++ b/src/vs/workbench/services/extensions/electron-browser/localProcessExtensionHost.ts
@@ -394,12 +394,11 @@ export class LocalProcessExtensionHost implements IExtensionHost {
 		return new Promise((resolve, reject) => {
 			const socket = createConnection(pipeName, () => {
 				socket.off('error', reject);
-
-				// !!! We need to add a 'data' listener immediately to the
-				// socket to avoid missing any events.
-				resolve(new PersistentProtocol(new NodeSocket(socket, 'renderer-exthost')));
 			});
 			socket.on('error', reject);
+			// !!! We need to add a 'data' listener immediately to the
+			// socket to avoid missing any events.
+			resolve(new PersistentProtocol(new NodeSocket(socket, 'renderer-exthost')));
 		});
 	}