syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"v22:"}]}
source_snippet:         v22: vreg = ["v22"] % reserved_v20to31,
context_before:         v21: vreg = ["v21"] % reserved_v20to31,
context_after:         v23: vreg = ["v23"] % reserved_v20to31,