Rollup merge of #36206 - mcarton:35755, r=pnkfelix

Fix bad error message with `::<` in types

Fix #36116.

Before:
```rust
error: expected identifier, found `<`
  --> src/test/compile-fail/issue-36116.rs:16:52
   |
16 |     let f = Some(Foo { _a: 42 }).map(|a| a as Foo::<i32>);
   |                                                    ^

error: chained comparison operators require parentheses
  --> src/test/compile-fail/issue-36116.rs:16:52
   |
16 |     let f = Some(Foo { _a: 42 }).map(|a| a as Foo::<i32>);
   |                                                    ^^^^^^
   |
   = help: use `::<...>` instead of `<...>` if you meant to specify type arguments

error: expected expression, found `)`
  --> src/test/compile-fail/issue-36116.rs:16:57
   |
16 |     let f = Some(Foo { _a: 42 }).map(|a| a as Foo::<i32>);
   |                                                         ^

error: expected identifier, found `<`
  --> src/test/compile-fail/issue-36116.rs:20:17
   |
20 |     let g: Foo::<i32> = Foo { _a: 42 };
   |                 ^

error: aborting due to 5 previous errors
```

After:
```rust
error: unexpected token: `::`
  --> src/test/compile-fail/issue-36116.rs:16:50
   |
16 |     let f = Some(Foo { _a: 42 }).map(|a| a as Foo::<i32>);
   |                                                  ^^
   |
   = help: use `<...>` instead of `::<...>` if you meant to specify type arguments

error: unexpected token: `::`
  --> src/test/compile-fail/issue-36116.rs:20:15
   |
20 |     let g: Foo::<i32> = Foo { _a: 42 };
   |               ^^
   |
   = help: use `<...>` instead of `::<...>` if you meant to specify type arguments

error: aborting due to 2 previous errors
```

0 files changed, 0 insertions, 0 deletions