syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"\"sysv64\""}]}
source_snippet:                 "sysv64" => Ok(InlineAsmClobberAbi::X86_64SysV),
context_before:                 "win64" | "efiapi" => Ok(InlineAsmClobberAbi::X86_64Win),
context_after:                 _ => Err(&["C", "system", "efiapi", "win64", "sysv64"]),