Move string list utility functions to android package

Test: m checkbuild
Change-Id: I50a7ccf9fd7ed82b688e3eb90489c0bc0af33287

cc/util.go

@@ -40,50 +40,11 @@ func libNamesToFlags(names []string) string {
 	return android.JoinWithPrefix(names, "-l")
 }
 
-func indexList(s string, list []string) int {
-	for i, l := range list {
-		if l == s {
-			return i
-		}
-	}
-
-	return -1
-}
-
-func inList(s string, list []string) bool {
-	return indexList(s, list) != -1
-}
-
-func filterList(list []string, filter []string) (remainder []string, filtered []string) {
-	for _, l := range list {
-		if inList(l, filter) {
-			filtered = append(filtered, l)
-		} else {
-			remainder = append(remainder, l)
-		}
-	}
-
-	return
-}
-
-func removeListFromList(list []string, filter_out []string) (result []string) {
-	result = make([]string, 0, len(list))
-	for _, l := range list {
-		if !inList(l, filter_out) {
-			result = append(result, l)
-		}
-	}
-	return
-}
-
-func removeFromList(s string, list []string) (bool, []string) {
-	i := indexList(s, list)
-	if i != -1 {
-		return true, append(list[:i], list[i+1:]...)
-	} else {
-		return false, list
-	}
-}
+var indexList = android.IndexList
+var inList = android.InList
+var filterList = android.FilterList
+var removeListFromList = android.RemoveListFromList
+var removeFromList = android.RemoveFromList
 
 var libNameRegexp = regexp.MustCompile(`^lib(.*)$`)