Todd Gamblin 7cfa497912 bugfix: spack.package.possible_dependencies() should return virtuals ... `spack.package.possible_dependencies()` was forgetting to pass the `visited` dict to recursive calls; this fixes it		2020-03-19 09:00:40 -07:00
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spack	bugfix: spack.package.possible_dependencies() should return virtuals	2020-03-19 09:00:40 -07:00