Add KernelXyzExpression stubs and factory methods.

pkg/front_end/lib/src/fasta/parser/listener.dart

Index: pkg/front_end/lib/src/fasta/parser/listener.dart
diff --git a/pkg/front_end/lib/src/fasta/parser/listener.dart b/pkg/front_end/lib/src/fasta/parser/listener.dart
index b6d8bd3224feb0824c72b4cadf062ef3670211c9..51e482ce9405ecb82b040588e8f045678d23004b 100644
--- a/pkg/front_end/lib/src/fasta/parser/listener.dart
+++ b/pkg/front_end/lib/src/fasta/parser/listener.dart
@@ -648,7 +648,7 @@ class Listener {
 
   void beginRethrowStatement(Token token) {}
 
-  void endRethrowStatement(Token throwToken, Token endToken) {
+  void endRethrowStatement(Token rethrowToken, Token endToken) {
     logEvent("RethrowStatement");
   }