syntax_data: {"ast_node_type":"other","tokens":[{"end":34,"kind":"keyword","start":0,"text":"x12:"}]}
source_snippet:         x12: reg = ["x12", "w12"],
context_before:         x11: reg = ["x11", "w11"],
context_after:         x13: reg = ["x13", "w13"] % restricted_for_arm64ec,