src/vs/workbench/contrib/files/common/workspaceWatcher.ts/WorkspaceWatcher/registerListeners
class WorkspaceWatcher:	private registerListeners(): void {
		this._register(this.contextService.onDidChangeWorkspaceFolders(e => this.onDidChangeWorkspaceFolders(e)));
		this._register(this.contextService.onDidChangeWorkbenchState(() => this.onDidChangeWorkbenchState()));
		this._register(this.configurationService.onDidChangeConfiguration(e => this.onDidChangeConfiguration(e)));
		this._register(this.fileService.onError(error => this.onError(error)));
	}