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/java/base.go b/java/base.go
index 6779283..3fd5a45 100644
--- a/java/base.go
+++ b/java/base.go
@@ -1747,24 +1747,24 @@
 
 type providesTransitiveHeaderJars struct {
 	// set of header jars for all transitive libs deps
-	transitiveLibsHeaderJars *android.DepSet
+	transitiveLibsHeaderJars *android.DepSet[android.Path]
 	// set of header jars for all transitive static libs deps
-	transitiveStaticLibsHeaderJars *android.DepSet
+	transitiveStaticLibsHeaderJars *android.DepSet[android.Path]
 }
 
-func (j *providesTransitiveHeaderJars) TransitiveLibsHeaderJars() *android.DepSet {
+func (j *providesTransitiveHeaderJars) TransitiveLibsHeaderJars() *android.DepSet[android.Path] {
 	return j.transitiveLibsHeaderJars
 }
 
-func (j *providesTransitiveHeaderJars) TransitiveStaticLibsHeaderJars() *android.DepSet {
+func (j *providesTransitiveHeaderJars) TransitiveStaticLibsHeaderJars() *android.DepSet[android.Path] {
 	return j.transitiveStaticLibsHeaderJars
 }
 
 func (j *providesTransitiveHeaderJars) collectTransitiveHeaderJars(ctx android.ModuleContext) {
 	directLibs := android.Paths{}
 	directStaticLibs := android.Paths{}
-	transitiveLibs := []*android.DepSet{}
-	transitiveStaticLibs := []*android.DepSet{}
+	transitiveLibs := []*android.DepSet[android.Path]{}
+	transitiveStaticLibs := []*android.DepSet[android.Path]{}
 	ctx.VisitDirectDeps(func(module android.Module) {
 		// don't add deps of the prebuilt version of the same library
 		if ctx.ModuleName() == android.RemoveOptionalPrebuiltPrefix(module.Name()) {