syntax_data: {"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"(\"dotprod\","}]}
source_snippet:     ("dotprod", Unstable(sym::arm_target_feature), &["neon"]),
context_before:     ("d32", Unstable(sym::arm_target_feature), &[]),
context_after:     ("dsp", Unstable(sym::arm_target_feature), &[]),