RA can't expand rustc_hir::lang_items::language_item_table

[jyn514]

This is just a normal macro, not a proc-macro, so not sure what could be going wrong.

Reproduction steps:

1. Checkout rust-lang/rust@1247250
2. Open compiler/rustc_hir/src/lang_items.rs
3. Scroll to line 167 and see that it's all red:

[edwin0cheng]

Should be this line :

https://github.com/rust-lang/rust/blob/1247250d506084773806e0562ce925938695b19d/compiler/rustc_hir/src/lang_items.rs#L49

#[doc = concat!("The `", stringify!($name), "` lang item.")]

See #8092

[jyn514]

Ah ok, that would do it.