52b7fc14fe
Continuation of https://github.com/mozilla/rust/pull/7826. AST spanned<T> refactoring, AST type renamings: `crate => Crate` `local => Local` `blk => Block` `crate_num => CrateNum` `crate_cfg => CrateConfig` `field => Field` Also, Crate, Field and Local are not wrapped in spanned<T> anymore.