syntax_data: {"ast_node_type":"other","tokens":[{"end":30,"kind":"keyword","start":0,"text":"!self.from_expansion()"}]}
source_snippet:         !self.from_expansion()
context_before:     pub fn can_be_used_for_suggestions(self) -> bool {
context_after:         // FIXME: If this span comes from a `derive` macro but it points at code the user wrote,