syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // logic from HIR typeck (in order to avoid needing to store all changes to the dbm in
context_before:     // FIXME(ref_pat_eat_one_layer_2024_structural): To track the default binding mode, we duplicate
context_after:     // TypeckResults). Since the default binding mode acts differently under this feature gate, the