enforce that type always be surrounded by curly braces

[nanaze]

E:0219: Type must always be surrounded by curly braces.

[concavelenz]

Can you provide an example here?

[nanaze]

I think this used to work:

/**
 * @param string name
 */
function hello(name) {
  alert('Hello, ' + name);
}
hello('New user');

This may be obsolete, however.

[MatrixFrog]

That may not work anymore but I know that @extends Foo (instead of @extends {Foo}) still does work because I see it fairly often.

[concavelenz]

Generally, if we don't allow general type expressions and they aren't optional, I don't know that "{" are necessary:

"@template T" should not be "@template {T}"

[nanaze]

The style guide mentions that some of these are optional. I think this really matters for @param and @return sine they both have text after the type.