Merge #4559

4559: Module name on hover shows another newline after it r=matklad a=Arthamys

This changes the display of hover information to add a newline between the module path of the item and the signature of the item, as suggested in #3813 

**Before**

![before_3813](https://user-images.githubusercontent.com/11710698/82609224-5d517d80-9bbc-11ea-9a08-0a1558409c6b.png)

**After**

![after_3813](https://user-images.githubusercontent.com/11710698/82609208-562a6f80-9bbc-11ea-8cb6-4430269c5800.png)

Co-authored-by: Galilée 'Bill' Enguehard <[email protected]>

1 files changed, 3 insertions, 3 deletions

diff --git a/crates/ra_ide/src/display.rs b/crates/ra_ide/src/display.rs
index 722092de9..8bb312156 100644
--- a/crates/ra_ide/src/display.rs
+++ b/crates/ra_ide/src/display.rs
@@ -79,14 +79,14 @@ pub(crate) fn rust_code_markup_with_doc(
     doc: Option<&str>,
     mod_path: Option<&str>,
 ) -> String {
-    let mut buf = "```rust\n".to_owned();
+    let mut buf = String::new();
 
     if let Some(mod_path) = mod_path {
         if !mod_path.is_empty() {
-            format_to!(buf, "{}\n", mod_path);
+            format_to!(buf, "{}\n___\n\n", mod_path);
         }
     }
-    format_to!(buf, "{}\n```", code);
+    format_to!(buf, "```rust\n{}\n```", code);
 
     if let Some(doc) = doc {
         format_to!(buf, "\n\n{}", doc);