syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"v25:"}]}
source_snippet:         v25: vreg = ["v25"] % reserved_v20to31,
context_before:         v24: vreg = ["v24"] % reserved_v20to31,
context_after:         v26: vreg = ["v26"] % reserved_v20to31,