more fasta event cleanup and testing

pkg/analyzer/lib/src/fasta/ast_builder.dart

Index: pkg/analyzer/lib/src/fasta/ast_builder.dart
diff --git a/pkg/analyzer/lib/src/fasta/ast_builder.dart b/pkg/analyzer/lib/src/fasta/ast_builder.dart
index e0088f74e7a107278e945dece556d2a5a2a8ee3c..df2e9afe32df2330ad8ba13adfe28c82c5567358 100644
--- a/pkg/analyzer/lib/src/fasta/ast_builder.dart
+++ b/pkg/analyzer/lib/src/fasta/ast_builder.dart
@@ -951,13 +951,8 @@ class AstBuilder extends ScopeListener {
   }
 
   @override
-  void handleSwitchCase(
-      int labelCount,
-      int expressionCount,
-      Token defaultKeyword,
-      int statementCount,
-      Token firstToken,
-      Token endToken) {
+  void endSwitchCase(int labelCount, int expressionCount, Token defaultKeyword,
+      int statementCount, Token firstToken, Token endToken) {
     debugEvent("SwitchCase");
     List<Statement> statements = popList(statementCount);
     List<SwitchMember> members = popList(expressionCount) ?? [];