don't record lazy snapshots of nonlocal or global symbols

Author: mtshiba

crates/ty_python_semantic/src/semantic_index/builder.rs

@@ -358,9 +358,12 @@ impl<'db, 'ast> SemanticIndexBuilder<'db, 'ast> {
 
             for nested_place in self.place_tables[popped_scope_id].places() {
                 // We don't record lazy snapshots of attributes or subscripts, because these are difficult to track as they modify.
+                // For the same reason, symbols declared as nonlocal or global are not recorded.
                 // Also, if the enclosing scope allows its members to be modified from elsewhere, the snapshot will not be recorded.
                 if !nested_place.is_name()
                     || self.scopes[enclosing_scope_id].visibility().is_public()
+                    || nested_place.is_marked_nonlocal()
+                    || nested_place.is_marked_global()
                 {
                     continue;
                 }