message: Allow undefined for cwd
diff: @@ -101,7 +101,7 @@ export function resolveModule(workspaceRoot: string, moduleName: string): Thenab
  }
  -export function resolve(moduleName: string, nodePath: string | undefined, cwd: string, tracer: (message: string, verbose?: string) => void): Thenable<string> {
  +export function resolve(moduleName: string, nodePath: string | undefined, cwd: string | undefined, tracer: (message: string, verbose?: string) => void): Thenable<string> {
  interface Message {
  c: string;
  s?: boolean;
  