Planned features of a classfile context object

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Hi,
In the discussions a few weeks ago, we envisioned a Classfile context
object shared across multiple Classfile processing scenarios, mainly
for Class hierarchy information caching.

I want to confirm that these are contents of the object, mainly
promoted from individual options:
 - Class Hierarchy information caching
 - Custom attribute processing
 - A set of default options, propagated to individual processing (may
be overridden classfile-wise)

What else is planned for the context object currently? Please don't
hesitate to propose. Thanks!

Chen Liang