syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"r10:"}]}
source_snippet:         r10: reg = ["r10", "o2"], // % reserved_o2
context_before:         r9: reg = ["r9", "o1"], // % reserved_o1
context_after:         r11: reg = ["r11", "o3"], // % reserved_o3