Merge #1793

1793: Fix outer doc-comments of `macro_rules` r=matklad a=uHOOCCOOHu

Document comments of `macro_rules!` is currently parsed outside the `MACRO_CALL` node,
which makes `DocCommentsOwner::doc_comments()` always empty.

For the input:
```rust
/// Some docs
macro_rules! foo {
    () => {};
}
```

Current parsing tree is:
```
SOURCE_FILE
  COMMENT    // <- This should be children of MACRO_CALL
  WHITESPACE
  MACRO_CALL
    PATH
<...omitted...>
```

It should be:
```
SOURCE_FILE
  MACRO_CALL
    COMMENT
    WHITESPACE
    PATH
<...omitted...>
```


Co-authored-by: uHOOCCOOHu <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/ra_syntax/src/parsing/text_tree_sink.rs b/crates/ra_syntax/src/parsing/text_tree_sink.rs
index f59c559e9..be6e51780 100644
--- a/crates/ra_syntax/src/parsing/text_tree_sink.rs
+++ b/crates/ra_syntax/src/parsing/text_tree_sink.rs
@@ -144,8 +144,8 @@ fn n_attached_trivias<'a>(
     trivias: impl Iterator<Item = (SyntaxKind, &'a str)>,
 ) -> usize {
     match kind {
-        CONST_DEF | TYPE_ALIAS_DEF | STRUCT_DEF | ENUM_DEF | ENUM_VARIANT | FN_DEF | TRAIT_DEF
-        | MODULE | RECORD_FIELD_DEF => {
+        MACRO_CALL | CONST_DEF | TYPE_ALIAS_DEF | STRUCT_DEF | ENUM_DEF | ENUM_VARIANT | FN_DEF
+        | TRAIT_DEF | MODULE | RECORD_FIELD_DEF => {
             let mut res = 0;
             for (i, (kind, text)) in trivias.enumerate() {
                 match kind {