0.4: Expand glob imports

[taiki-e]

Backport of ab1f198.

0.4.28 and older versions are failed to compile with syn 1.0.84 and later.

error[E0659]: `parse_quote_spanned` is ambiguous
   --> pin-project-internal/src/pin_project/derive.rs:865:67
    |
865 |                 proj_generics.make_where_clause().predicates.push(parse_quote_spanned! { span =>
    |                                                                   ^^^^^^^^^^^^^^^^^^^ ambiguous name
    |
    = note: ambiguous because of a conflict between a `macro_rules` name and a non-`macro_rules` name from another module
note: `parse_quote_spanned` could refer to the macro defined here
   --> pin-project-internal/src/utils.rs:23:1
    |
23  | / macro_rules! parse_quote_spanned {
24  | |     ($span:expr => $($tt:tt)*) => {
25  | |         syn::parse2(quote::quote_spanned!($span => $($tt)*)).unwrap_or_else(|e| panic!("{}", e))
26  | |     };
27  | | }
    | |_^
note: `parse_quote_spanned` could also refer to the macro imported here
   --> pin-project-internal/src/pin_project/derive.rs:7:5
    |
7   |     *,
    |     ^
    = help: use `self::parse_quote_spanned` to refer to this macro unambiguously

See ddcd880 for v1.0.

[taiki-e]

bors r+

[taiki-e]

By the way, as of 2021/12/26, 0.4.28 is still being downloaded around 10,000 times a day (on weekdays).

[bors]

Build succeeded:

• ci