Macro ion_schema::assert_non_equivalent_violations

macro_rules! assert_non_equivalent_violations {
    ($left:expr, $right:expr $(,)?) => { ... };
    ($left:expr, $right:expr, $($arg:tt)+) => { ... };
}

Equivalence for Violations is not supported due to its tree structure of having children violations. This macro can be used for comparing if two violations are not equal and uses flattened_violations for the comparison.