syntax_data: {"ast_node_type":"other","tokens":[{"end":28,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// message to the user.
context_before:     /// when `supported_types` fails to give a better error
context_after:     pub fn suggest_class(self, arch: InlineAsmArch, ty: InlineAsmType) -> Option<Self> {