Rename declaration_name -> display_name

Declaration names sounds like a name of declaration -- something you
can use for analysis. It empathically isn't, and is just a label
displayed in various UI. It's important not to confuse the two, least
we accidentally mix semantics with UI (I believe, there's already a
case of this in the FamousDefs at least).

2 files changed, 4 insertions, 8 deletions

diff --git a/crates/hir_def/src/import_map.rs b/crates/hir_def/src/import_map.rs
index 028cae2e7..1e24f29a8 100644
--- a/crates/hir_def/src/import_map.rs
+++ b/crates/hir_def/src/import_map.rs
@@ -356,7 +356,7 @@ mod tests {
         let krate = crate_graph
             .iter()
             .find(|krate| {
-                crate_graph[*krate].declaration_name.as_ref().map(|n| n.to_string())
+                crate_graph[*krate].display_name.as_ref().map(|n| n.to_string())
                     == Some(crate_name.to_string())
             })
             .unwrap();
@@ -375,7 +375,7 @@ mod tests {
                     let path = map.path_of(item).unwrap();
                     format!(
                         "{}::{} ({})\n",
-                        crate_graph[krate].declaration_name.as_ref().unwrap(),
+                        crate_graph[krate].display_name.as_ref().unwrap(),
                         path,
                         mark
                     )
@@ -416,7 +416,7 @@ mod tests {
             .iter()
             .filter_map(|krate| {
                 let cdata = &crate_graph[krate];
-                let name = cdata.declaration_name.as_ref()?;
+                let name = cdata.display_name.as_ref()?;
 
                 let map = db.import_map(krate);
 
diff --git a/crates/hir_def/src/nameres.rs b/crates/hir_def/src/nameres.rs
index 464ffef21..3d04f81c6 100644
--- a/crates/hir_def/src/nameres.rs
+++ b/crates/hir_def/src/nameres.rs
@@ -172,11 +172,7 @@ pub struct ModuleData {
 impl CrateDefMap {
     pub(crate) fn crate_def_map_query(db: &dyn DefDatabase, krate: CrateId) -> Arc<CrateDefMap> {
         let _p = profile::span("crate_def_map_query").detail(|| {
-            db.crate_graph()[krate]
-                .declaration_name
-                .as_ref()
-                .map(ToString::to_string)
-                .unwrap_or_default()
+            db.crate_graph()[krate].display_name.as_deref().unwrap_or_default().to_string()
         });
         let def_map = {
             let edition = db.crate_graph()[krate].edition;