syntax_data: {"ast_node_type":"other","tokens":[{"end":34,"kind":"keyword","start":0,"text":"Self::reg_byte"}]}
source_snippet:             Self::reg_byte => &[],
context_before:             }
context_after:             Self::xmm_reg | Self::ymm_reg | Self::zmm_reg => &['x', 'y', 'z'],