Fix #1498: kotlin lib missing resource ID for OnClick annotation

[JantHsueh]

I am very happy to be involved in this project. If there is a need to change, I am willing to do my utmost.

I solved this problem Missing resource ID for OnClick annotation #1498 these days . Next, I will analyze the reasons and solutions.Please take a look ,thanks

Reason:
When using kotlin, for the same resource, if you do not use other annotations (eg: @Bindview) before the event annotation (eg: @OnClick), after generating view_binding.java, the Utils.findRequiredView() uses a raw integer not R reference.

When the merged resource is packaged, the static value of the R file has changed. So it leads "Missing resource ID".

Analysis:
The annotation processing of kotlin generates a stub java file and processes the annotation according to the java file.But at this time ,Java file already using raw integer

My solution is to solve in the process() method, if it is the first time use a raw integer, go through the R.java, find the corresponding static value in R.java, and use R reference replace it.
If the second time is a raw integer, it will not be processed because the same resource will use the same Id(butterknife.compiler.Id.java).

thanks