70597f28f6
Turn alloc's force_expr macro into a regular macro_rules. This turns `alloc`'s `force_expr` macro into a regular `macro_rules`. Otherwise rust-analyzer doesn't understand `vec![]`. See https://github.com/rust-analyzer/rust-analyzer/issues/7349 and https://github.com/rust-lang/rust/pull/81080#issuecomment-764741721 Edit: See https://github.com/rust-lang/rust/pull/81241#issuecomment-764812660 for a discussion of alternatives.