syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"neon:"}]}
source_snippet:                 neon: I8, I16, I32, I64, F16, F32, F64, F128,
context_before:             Self::vreg | Self::vreg_low16 => types! {
context_after:                     VecI8(8), VecI16(4), VecI32(2), VecI64(1), VecF16(4), VecF32(2), VecF64(1),