Parse empty statements with Fasta.

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

Index: pkg/front_end/lib/src/fasta/analyzer/ast_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/analyzer/ast_builder.dart b/pkg/front_end/lib/src/fasta/analyzer/ast_builder.dart
index 68f28a049251ef0f1592fe93f6fbaae3e3ab6795..34c6482dab79c5b3dc756bea50f3d4ebefcd8220 100644
--- a/pkg/front_end/lib/src/fasta/analyzer/ast_builder.dart
+++ b/pkg/front_end/lib/src/fasta/analyzer/ast_builder.dart
@@ -243,6 +243,12 @@ class AstBuilder extends ScopeListener {
     push(ast.emptyFunctionBody(toAnalyzerToken(semicolon)));
   }
 
+  @override
+  void handleEmptyStatement(Token token) {
+    debugEvent("EmptyStatement");
+    push(ast.emptyStatement(toAnalyzerToken(token)));
+  }
+
   void endBlockFunctionBody(int count, Token beginToken, Token endToken) {
     debugEvent("BlockFunctionBody");
     List statements = popList(count);