Maintain more internal consistency checks when merging worlds #1792
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This commit fixes two issues, both preexisting, which represented
violated invariants of a
Resolve
after worlds were merged. Worldmerging is used during component generation and might be used for
bindings generation so it's important to maintain the various dynamic
invariants of
Resolve
to ensure that surrounding tooling works. Anexample of this is that printing a merged world doesn't produce
parseable WIT today because some of the internal invariants aren't
respected.
This commit beefs up the
Resolve::assert_valid
function and thenapplies necessary fixes to resolve these assertion failures on
preexisting test cases. The main difference is that anonymous
interfaces/types are now "cloned" when they move from one world to
another. This is required to ensure that all the various links between
these items are consistent and point to the right place. This cloning
infrastructure may end up being more generalized in the future if the
need arises, but for now it's quite limited.