internal: Flatten Definition::ModuleDef variant

crates/ide/src/call_hierarchy.rs

@@ -47,15 +47,11 @@ pub(crate) fn incoming_calls(
         .find_nodes_at_offset_with_descend(file, offset)
         .filter_map(move |node| match node {
             ast::NameLike::NameRef(name_ref) => match NameRefClass::classify(sema, &name_ref)? {
-                NameRefClass::Definition(
-                    def @ Definition::ModuleDef(hir::ModuleDef::Function(_)),
-                ) => Some(def),
+                NameRefClass::Definition(def @ Definition::Function(_)) => Some(def),
                 _ => None,
             },
             ast::NameLike::Name(name) => match NameClass::classify(sema, &name)? {
-                NameClass::Definition(def @ Definition::ModuleDef(hir::ModuleDef::Function(_))) => {
-                    Some(def)
-                }
+                NameClass::Definition(def @ Definition::Function(_)) => Some(def),
                 _ => None,
             },
             ast::NameLike::Lifetime(_) => None,