Merge changes from topic "lint-unbundled-apps"

* changes:
  Build a zip of transitive lint reports for apps
  Add DepSets

android/paths.go

@@ -486,6 +486,10 @@ func (p Paths) Strings() []string {
 	return ret
 }
 
+func CopyOfPaths(paths Paths) Paths {
+	return append(Paths(nil), paths...)
+}
+
 // FirstUniquePaths returns all unique elements of a Paths, keeping the first copy of each.  It
 // modifies the Paths slice contents in place, and returns a subslice of the original slice.
 func FirstUniquePaths(list Paths) Paths {
@@ -496,7 +500,8 @@ func FirstUniquePaths(list Paths) Paths {
 	return firstUniquePathsList(list)
 }
 
-// SortedUniquePaths returns what its name says
+// SortedUniquePaths returns all unique elements of a Paths in sorted order.  It modifies the
+// Paths slice contents in place, and returns a subslice of the original slice.
 func SortedUniquePaths(list Paths) Paths {
 	unique := FirstUniquePaths(list)
 	sort.Slice(unique, func(i, j int) bool {