Move parseInt parseDouble to int/double classes as a static method.

lib/uri/uri.dart

Index: lib/uri/uri.dart
diff --git a/lib/uri/uri.dart b/lib/uri/uri.dart
index c29ebe25838a249eabc898656498d4499620be5c..d087320b18d289e8feb4fa81863a46024a4aeee1 100644
--- a/lib/uri/uri.dart
+++ b/lib/uri/uri.dart
@@ -49,7 +49,7 @@ class Uri {
 
   static int _parseIntOrZero(String val) {
     if (val !== null && val != '') {
-      return parseInt(val);
+      return int.parse(val);
     } else {
       return 0;
     }