syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"excluded_pointees:"}]}
source_snippet:         excluded_pointees: &'a [Ty<'tcx>],
context_before:         typing_env: ty::TypingEnv<'tcx>,
context_after:         field_projection_mode: BorrowedFieldProjectionMode,