Merge #715

715: Use "▶" for test code lens r=matklad a=kjeremy

I find that this makes code lenses stand out more otherwise they can be easy to miss.

Co-authored-by: Jeremy Kolb <kjeremy@gmail.com>

crates/ra_lsp_server/src/main_loop/handlers.rs

@@ -618,7 +618,9 @@ pub fn handle_code_lens(
 
     for runnable in world.analysis().runnables(file_id)? {
         let title = match &runnable.kind {
-            RunnableKind::Test { name: _ } | RunnableKind::TestMod { path: _ } => Some("Run Test"),
+            RunnableKind::Test { name: _ } | RunnableKind::TestMod { path: _ } => {
+                Some("▶️Run Test")
+            }
             RunnableKind::Bench { name: _ } => Some("Run Bench"),
             _ => None,
         };