syntax_data: {"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"p0:"}]}
source_snippet:         p0: preg = ["p0"] % restricted_for_arm64ec,
context_before:         v31: vreg = ["v31", "b31", "h31", "s31", "d31", "q31", "z31"] % restricted_for_arm64ec,
context_after:         p1: preg = ["p1"] % restricted_for_arm64ec,