Todd Gamblin 05c761dee9 Add package_class method to spec. ... - Shouldn't call .package from within things like normalize() and concretize() beacuse spec may be inconsistent. - Add `.package_class` property so that we can get at package metadata without constructing a Package with a Spec. - should be faster than `.package` was, anyway. Use where possible.		2016-03-14 04:59:29 -07:00
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spack	Add package_class method to spec.	2016-03-14 04:59:29 -07:00