Fix adding order dependent dependency resolution

PackageFSRoot::_AddPackage(): When adding a resolvable which isn't known
yet, make sure all already added matching dependencies are resolved.

src/add-ons/kernel/file_systems/packagefs/DependencyFamily.h

@@ -17,6 +17,9 @@ public:
 			void				AddDependency(Dependency* dependency);
 			void				RemoveDependency(Dependency* dependency);
 
+			void				AddDependenciesToList(
+									ResolvableDependencyList& list) const;
+
 			const char*			Name() const;
 
 			bool				IsLastDependency(Dependency* dependency) const;
@@ -45,6 +48,16 @@ DependencyFamily::RemoveDependency(Dependency* dependency)
 }
 
 
+inline void
+DependencyFamily::AddDependenciesToList(ResolvableDependencyList& list) const
+{
+	for (FamilyDependencyList::ConstIterator it = fDependencies.GetIterator();
+			Dependency* dependency = it.Next();) {
+		list.Add(dependency);
+	}
+}
+
+
 inline const char*
 DependencyFamily::Name() const
 {

src/add-ons/kernel/file_systems/packagefs/PackageFSRoot.cpp

@@ -246,6 +246,12 @@ PackageFSRoot::_AddPackage(Package* package)
 
 			family->AddResolvable(resolvable, dependenciesToUpdate);
 			fResolvables.Insert(family);
+
+			// add pre-existing dependencies for that resolvable
+			if (DependencyFamily* dependencyFamily
+					= fDependencies.Lookup(resolvable->Name())) {
+				dependencyFamily->AddDependenciesToList(dependenciesToUpdate);
+			}
 		}
 	}