prepare to move run/debug splitting to handlers

crates/rust-analyzer/src/to_proto.rs

@@ -988,9 +988,10 @@ pub(crate) fn runnable(
 }
 
 pub(crate) fn code_lens(
+    acc: &mut Vec<lsp_types::CodeLens>,
     snap: &GlobalStateSnapshot,
     annotation: Annotation,
-) -> Result<lsp_types::CodeLens> {
+) -> Result<()> {
     match annotation.kind {
         AnnotationKind::Runnable { debug, runnable: run } => {
             let line_index = snap.file_line_index(run.nav.file_id)?;
@@ -1002,7 +1003,11 @@ pub(crate) fn code_lens(
             let command =
                 if debug { command::debug_single(&r) } else { command::run_single(&r, &title) };
 
-            Ok(lsp_types::CodeLens { range: annotation_range, command: Some(command), data: None })
+            acc.push(lsp_types::CodeLens {
+                range: annotation_range,
+                command: Some(command),
+                data: None,
+            })
         }
         AnnotationKind::HasImpls { position: file_position, data } => {
             let line_index = snap.file_line_index(file_position.file_id)?;
@@ -1041,7 +1046,7 @@ pub(crate) fn code_lens(
                 )
             });
 
-            Ok(lsp_types::CodeLens {
+            acc.push(lsp_types::CodeLens {
                 range: annotation_range,
                 command,
                 data: Some(to_value(lsp_ext::CodeLensResolveData::Impls(goto_params)).unwrap()),
@@ -1070,13 +1075,14 @@ pub(crate) fn code_lens(
                 )
             });
 
-            Ok(lsp_types::CodeLens {
+            acc.push(lsp_types::CodeLens {
                 range: annotation_range,
                 command,
                 data: Some(to_value(lsp_ext::CodeLensResolveData::References(doc_pos)).unwrap()),
             })
         }
     }
+    Ok(())
 }
 
 pub(crate) mod command {