syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"v29:"}]}
source_snippet:         v29: vreg = ["v29"] % reserved_v20to31,
context_before:         v28: vreg = ["v28"] % reserved_v20to31,
context_after:         v30: vreg = ["v30"] % reserved_v20to31,