Fix issue1866.

[a1batr0ss]

What this PR does / why we need it?

修复Issue1866中WriteNullNumberAsZero不生效的问题

Summary of your change

在生成字节码时（ObjectWriterCreatorASM.gwInt32()），没有对Field.features进行判断（@JSONField(serializeFeatures = JSONWriter.Feature.WriteNullNumberAsZero存放在Field.features中），只判断了JSONWriter.context.features.

ps:
1、JSONWriter.context.features和Field.features之间关联吗？
2、ObjectWriterCreatorASM的其他函数, JSONWRITER的函数似乎都只判断了JSONWriter.context.features，是我理解有问题吗？

[CLAassistant]

All committers have signed the CLA.

[wenshao]

单测跑不过

[codecov-commenter]

Codecov Report

Attention: 10 lines in your changes are missing coverage. Please review.

Comparison is base (8953c18) 73.24% compared to head (4ae7001) 73.22%.
Report is 42 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1880      +/-   ##
============================================
- Coverage     73.24%   73.22%   -0.02%     
- Complexity    21504    21532      +28     
============================================
  Files           646      646              
  Lines         87376    87426      +50     
  Branches      19065    19078      +13     
============================================
+ Hits          64001    64022      +21     
- Misses        15459    15493      +34     
+ Partials       7916     7911       -5     

Files	Coverage Δ
...ibaba/fastjson2/writer/ObjectWriterCreatorASM.java	92.72% <33.33%> (-0.41%)	⬇️

... and 28 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[wenshao]

请签署SLA