Merge #5928

5928: Add method references CodeLens r=vsrs a=vsrs

The PR adds CodeLens for methods and  free-standing functions:

![method_refs](https://user-images.githubusercontent.com/62505555/91858244-95fbfb00-ec71-11ea-90c7-5b3ee067e305.png)

Relates to #5836

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

1 files changed, 6 insertions, 0 deletions

diff --git a/crates/ide/src/lib.rs b/crates/ide/src/lib.rs
index 4763c0aac..31f2bcba3 100644
--- a/crates/ide/src/lib.rs
+++ b/crates/ide/src/lib.rs
@@ -38,6 +38,7 @@ mod join_lines;
 mod matching_brace;
 mod parent_module;
 mod references;
+mod fn_references;
 mod runnables;
 mod status;
 mod syntax_highlighting;
@@ -369,6 +370,11 @@ impl Analysis {
         })
     }
 
+    /// Finds all methods and free functions for the file. Does not return tests!
+    pub fn find_all_methods(&self, file_id: FileId) -> Cancelable<Vec<FileRange>> {
+        self.with_db(|db| fn_references::find_all_methods(db, file_id))
+    }
+
     /// Returns a short text describing element at position.
     pub fn hover(
         &self,