Remove deprecated APIs.

lib/src/scan.dart

Index: lib/src/scan.dart
diff --git a/lib/src/scan.dart b/lib/src/scan.dart
index 3541038438ced5cb8ea69daa5e31ccfa4fc34a8e..9af8428a212362481d2a2e006b7eb95c850b2cda 100644
--- a/lib/src/scan.dart
+++ b/lib/src/scan.dart
@@ -37,8 +37,8 @@ final whitespace = new RegExp("(?:${_lws.pattern})*");
 ///
 /// Once this is finished, [scanner] will be at the next non-LWS character in
 /// the string, or the end of the string.
-List parseList(StringScanner scanner, parseElement()) {
-  var result = [];
+List/*<T>*/ parseList/*<T>*/(StringScanner scanner, /*=T*/ parseElement()) {
+  var result = /*<T>*/[];
 
   // Consume initial empty values.
   while (scanner.scan(",")) {