syntax_data: {"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // which corresponds to x86-64-v2.
context_before:     // See https://fuchsia.dev/fuchsia-src/contribute/governance/rfcs/0073_x86_64_platform_requirement,
context_after:     base.features = "+cx16,+sahf,+popcnt,+sse3,+sse4.1,+sse4.2,+ssse3".into();