syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"r11:"}]}
source_snippet:         r11: reg = ["r11", "r11w", "r11d"] % x86_64_only,
context_before:         r10: reg = ["r10", "r10w", "r10d"] % x86_64_only,
context_after:         r12: reg = ["r12", "r12w", "r12d"] % x86_64_only,