Report a parse error when recovery fails.

pkg/front_end/lib/src/fasta/kernel/body_builder.dart

Index: pkg/front_end/lib/src/fasta/kernel/body_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/kernel/body_builder.dart b/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
index 1130b7eb97119c22df6e5a5e0c13fca8daff079b..79a849015579127157fedcbd0e1bae8b78cd2f80 100644
--- a/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
@@ -2212,8 +2212,8 @@ class BodyBuilder extends ScopeListener<JumpTarget> implements BuilderHelper {
       if (trailing.contains(token.stringValue) && trailing.contains(expected)) {
         arguments.putIfAbsent("actual", () => token.value);
         handleRecoverableError(token, ErrorKind.ExpectedButGot, arguments);
+        return token;
       }
-      return token;
     }
     return super.handleUnrecoverableError(token, kind, arguments);
   }