syntax_data: {"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"body_target_features:"}]}
source_snippet:     body_target_features: &'tcx [TargetFeature],
context_before:     /// calls to functions with `#[target_feature]` (RFC 2396).
context_after:     /// When inside the LHS of an assignment to a field, this is the type