syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"(\"hvx-length128b\","}]}
source_snippet:     ("hvx-length128b", Unstable(sym::hexagon_target_feature), &["hvx"]),
context_before:     ("hvx", Unstable(sym::hexagon_target_feature), &[]),
context_after:     // tidy-alphabetical-end