replacement = other;
  }

  @SuppressWarnings("unchecked")
  @Override
  public void visitBlockStatement(BlockStatement stat) {
    replaceAll(stat.getStatements());
  }

  @Override
  public void visitForLoop(ForStatement stat) {
    stat.getCollectionExpression().visit(this);
    stat.setLoopBlock(replace(stat.getLoopBlock()));
  }

  @Override
  public void visitWhileLoop(WhileStatement stat) {

                sourceUnit
        );
    }

    @Override
    public void visitBlockStatement(BlockStatement statement) {
        restrict(statement);
    }

    @Override
    public void visitForLoop(ForStatement forLoop) {
        restrict(forLoop);
    }

    @Override
    public void visitWhileLoop(WhileStatement loop) {
        restrict(loop);
    }

    @Override

    }

    @Override
    @SuppressWarnings("unchecked")
    public void visitBlockStatement(BlockStatement stat) {
        replaceAll(stat.getStatements());
    }

    @Override
    public void visitForLoop(ForStatement stat) {
        stat.setCollectionExpression(replaceExpr(stat.getCollectionExpression()));
        stat.setLoopBlock(replace(stat.getLoopBlock()));
    }

    @Override

        }
        super.visitCatchStatement(cs);
    }

    @Override
    public void visitForLoop(ForStatement forLoop) {
        resolveOrFail(forLoop.getVariableType(), forLoop);
        super.visitForLoop(forLoop);
    }

    @Override
    public void visitBlockStatement(BlockStatement block) {
        VariableScope oldScope = currentScope;