syntax_data: {"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"r9:"}]}
source_snippet:         r9: reg = ["r9", "o1"], // % reserved_o1
context_before:         r8: reg = ["r8", "o0"], // % reserved_o0
context_after:         r10: reg = ["r10", "o2"], // % reserved_o2