syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"Err(OverflowError::Error(e))"}]}
source_snippet:                 Err(OverflowError::Error(e)) => {
context_before:                 }
context_after:                     Err(SelectionError::Overflow(OverflowError::Error(e)))