message: doc(es/parser): Change file extension in TypeScript example
diff: @@ -12,11 +12,11 @@ fn main() {
  // Real usage
  // let fm = cm
  - // .load_file(Path::new("test.js"))
  - // .expect("failed to load test.js");
  + // .load_file(Path::new("test.ts"))
  + // .expect("failed to load test.ts");
  let fm = cm.new_source_file(
  - FileName::Custom("test.js".into()),
  + FileName::Custom("test.ts".into()),
  "interface Foo {}".into(),
  );
  