syntax_data: {"ast_node_type":"import","tokens":[{"end":35,"kind":"keyword","start":0,"text":"use"}]}
source_snippet:         use AArch64InlineAsmReg::*;
context_before:     pub fn vreg_index(self) -> Option<u32> {
context_after:         if self as u32 >= v0 as u32 && self as u32 <= v31 as u32 {