Merge branch 'master' of github.com:Microsoft/vscode

src/vs/workbench/parts/terminal/electron-browser/terminalTab.ts

@@ -255,9 +255,9 @@ export class TerminalTab extends Disposable implements ITerminalTab {
 		}
 
 		// Fire events and dispose tab if it was the last instance
+		this._onInstancesChanged.fire();
 		if (this._terminalInstances.length === 0) {
 			this._onDisposed.fire(this);
-			this._onInstancesChanged.fire();
 			this.dispose();
 		}
 	}