Use generics for DepSets

Use Go's generics for DepSets so they don't require a type-specific
wrapper and reflection.

Test: depsets_test.go
Change-Id: I22ba0b7d680d37d2cd05230b0f560d166c4dd20b
diff --git a/android/license_metadata.go b/android/license_metadata.go
index 73000a9..8933bd5 100644
--- a/android/license_metadata.go
+++ b/android/license_metadata.go
@@ -55,7 +55,7 @@
 	var allDepMetadataFiles Paths
 	var allDepMetadataArgs []string
 	var allDepOutputFiles Paths
-	var allDepMetadataDepSets []*PathsDepSet
+	var allDepMetadataDepSets []*DepSet[Path]
 
 	ctx.VisitDirectDepsBlueprint(func(bpdep blueprint.Module) {
 		dep, _ := bpdep.(Module)
@@ -127,7 +127,7 @@
 		JoinWithPrefix(proptools.NinjaAndShellEscapeListIncludingSpaces(base.commonProperties.Effective_license_text.Strings()), "-n "))
 
 	if isContainer {
-		transitiveDeps := newPathsDepSet(nil, allDepMetadataDepSets).ToList()
+		transitiveDeps := Paths(NewDepSet[Path](TOPOLOGICAL, nil, allDepMetadataDepSets).ToList())
 		args = append(args,
 			JoinWithPrefix(proptools.NinjaAndShellEscapeListIncludingSpaces(transitiveDeps.Strings()), "-d "))
 		orderOnlyDeps = append(orderOnlyDeps, transitiveDeps...)
@@ -170,7 +170,7 @@
 
 	ctx.SetProvider(LicenseMetadataProvider, &LicenseMetadataInfo{
 		LicenseMetadataPath:   licenseMetadataFile,
-		LicenseMetadataDepSet: newPathsDepSet(Paths{licenseMetadataFile}, allDepMetadataDepSets),
+		LicenseMetadataDepSet: NewDepSet(TOPOLOGICAL, Paths{licenseMetadataFile}, allDepMetadataDepSets),
 	})
 }
 
@@ -198,7 +198,7 @@
 // LicenseMetadataInfo stores the license metadata path for a module.
 type LicenseMetadataInfo struct {
 	LicenseMetadataPath   Path
-	LicenseMetadataDepSet *PathsDepSet
+	LicenseMetadataDepSet *DepSet[Path]
 }
 
 // licenseAnnotationsFromTag returns the LicenseAnnotations for a tag (if any) converted into