We added unification semantics for parsing specs from the CLI, but there are a couple
of special cases in which we can avoid calls to the concretizer for speed when the
specs can all be resolved by lookups.
- [x] special case 1: solving a single spec
- [x] special case 2: all specs are either concrete (come from a file) or have an abstract
hash. In this case if concretizer:unify:true we need an additional check to confirm
the specs are compatible.
- [x] add a parameterized test for unifying on the CI
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Signed-off-by: Todd Gamblin <tgamblin@llnl.gov>
Co-authored-by: Todd Gamblin <tgamblin@llnl.gov>
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