Merge #1277

1277: Improve macro item resolution r=matklad a=edwin0cheng

~This PR add a new namespace `Macros` in `per_ns.rs` to allow following use case:~
This PR improve macro item resolution to allow following use case:

```rust
//- /main.rs     
use foo::bar;
bar!();

//- /lib.rs  (crate foo)
#[macro_export]
macro_rules! bar{
() => {
    struct Foo { field: u32 } 
}
```


Co-authored-by: Edwin Cheng <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/ra_hir/src/lib.rs b/crates/ra_hir/src/lib.rs
index fe2d4adee..cb09c60f8 100644
--- a/crates/ra_hir/src/lib.rs
+++ b/crates/ra_hir/src/lib.rs
@@ -80,5 +80,5 @@ pub use self::code_model::{
     Function, FnSignature,
     StructField, FieldSource,
     Static, Const, ConstSignature,
-    Trait, TypeAlias, Container
+    Trait, TypeAlias, MacroDef, Container
 };