mv.visitVarInsn(ALOAD, varINDENT4);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
"(Ljava/lang/String;)Ljava/lang/StringBuilder;");
mv.visitInsn(POP);
mv.visitVarInsn(ALOAD, varSB);
mv.visitVarInsn(ILOAD, varI);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(I)Ljava/lang/StringBuilder;");
mv.visitInsn(POP);
mv.visitVarInsn(ALOAD, varSB);