anchor.diff:  // Version of DartFuzz. Increase this each time changes are made
   // to preserve the property that a given version of DartFuzz yields
   // the same fuzzed program for a deterministic random seed.
  -const String version = '1.33';
  +const String version = '1.34';
   
   // Restriction on statements and expressions.
   const int stmtLength = 2;
  
positive.code:     }
      // Then pick one.
      assert(choices.isNotEmpty);
      emit('${choices.elementAt(rand.nextInt(choices.length))}');
    }
  
    void emitSubscriptedVar(int depth, DartType tp, {bool isLhs = false}) {
  
negative.code:     }
    }
  
    String emitScalarVar(DartType tp, {bool isLhs = false}) {
      // Collect all choices from globals, fields, locals, and parameters.
      Set<String> choices = <String>{};
      for (int i = 0; i < globalVars.length; i++) {
  