more fasta event cleanup and testing

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

Index: pkg/front_end/lib/src/fasta/parser/parser.dart
diff --git a/pkg/front_end/lib/src/fasta/parser/parser.dart b/pkg/front_end/lib/src/fasta/parser/parser.dart
index 5395ef8648c21526c9ea70732251021eb0cf7cd4..48c36634c697d838c86c4f3041a5c7920292ea3f 100644
--- a/pkg/front_end/lib/src/fasta/parser/parser.dart
+++ b/pkg/front_end/lib/src/fasta/parser/parser.dart
@@ -3975,7 +3975,7 @@ class Parser {
       statementCount++;
       peek = peekPastLabels(token);
     }
-    listener.handleSwitchCase(labelCount, expressionCount, defaultKeyword,
+    listener.endSwitchCase(labelCount, expressionCount, defaultKeyword,
         statementCount, begin, token);
     return token;
   }