syntax_data: {"ast_node_type":"variable","tokens":[{"end":48,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let body = tcx.hir_body_owned_by(owner_def);
context_before: ) -> Result<(&Steal<Thir<'_>>, ExprId), ErrorGuaranteed> {
context_after:     let mut cx = ThirBuildCx::new(tcx, owner_def);