syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"local_decls.push(LocalDecl::with_source_info(tcx.types.u128,"}]}
source_snippet:         local_decls.push(LocalDecl::with_source_info(tcx.types.u128, source_info)).into();
context_before:     let discr_diff: Place<'_> =
context_after:     block_data.statements.push(Statement::new(