syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"self.emit_u32(crate_num.as_u32());"}]}
source_snippet:         self.emit_u32(crate_num.as_u32());
context_before:     fn encode_crate_num(&mut self, crate_num: CrateNum) {
context_after:     }