syntax_data: {"ast_node_type":"other","tokens":[{"end":119,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // FIXME: vsx also supports integers?: https://github.com/rust-lang/rust/pull/131551#discussion_r1862535963
context_before:             Self::freg => types! { _: F32, F64; },
context_after:             Self::vreg => types! {