Function get_emit_mismatch_message 

pub(crate) fn get_emit_mismatch_message(
    checks: [bool; 5],
    expected: &LogData,
    actual: &LogData,
    is_anonymous: bool,
    expected_decoded: Option<&DecodedCallLog>,
    actual_decoded: Option<&DecodedCallLog>,
) -> String

Gets a detailed mismatch message for emit assertions