Rollup merge of #98705 - WaffleLapkin:closure_binder, r=cjgillot

Implement `for<>` lifetime binder for closures

This PR implements RFC 3216 ([TI](https://github.com/rust-lang/rust/issues/97362)) and allows code like the following:

```rust
let _f = for<'a, 'b> |a: &'a A, b: &'b B| -> &'b C { b.c(a) };
//       ^^^^^^^^^^^--- new!
```

cc ``@Aaron1011`` ``@cjgillot``

compiler/rustc_expand/src/build.rs

@@ -520,6 +520,7 @@ impl<'a> ExtCtxt<'a> {
         self.expr(
             span,
             ast::ExprKind::Closure(
+                ast::ClosureBinder::NotPresent,
                 ast::CaptureBy::Ref,
                 ast::Async::No,
                 ast::Movability::Movable,