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TODO  view on Meta::CPAN

for temps?

* add more tests for reftype

* add glob stuff

* test the compare methods

* make String check definedness 

* make regexprefs work by using some more general overload mechanism

* when failing a number due to strictness we should give different diags but
diags aren't flexible enough yet

* add docs for comparisons

* for circular refs, we are not looking for simulations but for graph
isomorphisms (or possibly a class of homomorphisms, that preserve the
distinctness of containers). We need a cache that can answer "assuming a=b,
are these two cache-equal?" and can keep track of dependencies. Shouldn't be