Fix resolving types when resolving HIR and add a related test

Author: Kohei316

crates/hir/src/source_analyzer.rs

@@ -943,17 +943,17 @@ fn resolve_hir_path_(
                 res.map(|ty_ns| (ty_ns, path.segments().first()))
             }
             None => {
-                let (ty, remaining) =
+                let (ty, remaining_idx) =
                     resolver.resolve_path_in_type_ns(db.upcast(), path.mod_path())?;
-                match remaining {
-                    Some(remaining) if remaining > 1 => {
-                        if remaining + 1 == path.segments().len() {
+                match remaining_idx {
+                    Some(remaining_idx) => {
+                        if remaining_idx + 1 == path.segments().len() {
                             Some((ty, path.segments().last()))
                         } else {
                             None
                         }
                     }
-                    _ => Some((ty, path.segments().get(1))),
+                    None => Some((ty, None)),
                 }
             }
         }?;

crates/ide/src/goto_definition.rs

@@ -1065,6 +1065,23 @@ fn f() -> impl Sub<Item$0 = u8> {}
         );
     }
 
+    #[test]
+    fn goto_def_for_module_declaration_in_path_if_types_and_values_same_name() {
+        check(
+            r#"
+mod bar {
+    pub struct Foo {}
+             //^^^
+    pub fn Foo() {}
+}
+
+fn baz() {
+    let _foo_enum: bar::Foo$0 = bar::Foo {};
+}
+        "#,
+        )
+    }
+
     #[test]
     fn unknown_assoc_ty() {
         check_unresolved(