syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"(Err(EvaluateConstErr::EvaluationFailure(..)),"}]}
source_snippet:                         (Err(EvaluateConstErr::EvaluationFailure(..)), _)
context_before:                         | (_, Err(EvaluateConstErr::InvalidConstParamTy(..))) => Ok(EvaluatedToErr),
context_after:                         | (_, Err(EvaluateConstErr::EvaluationFailure(..))) => Ok(EvaluatedToErr),