module Foo::Bar and nested module Foo; module Bar are canonicalized to
one fully-qualified label, and include/extend/prepend keep the full
constant path, so include Foo::Bar resolves. Mixin resolution is scoped
and lexical: a qualified external name (extend ActiveSupport::Concern)
no longer binds to a local module named Concern, while a genuine
in-corpus include Foo::Concern still resolves. Nested-declared classes
keep a last-segment index so typed-receiver calls (Processor.new) keep
resolving.
Adapts the approach from #1394 (thanks @FolatheDuckofDuckingburg) to the
post-refactor extractors/engine.py, with an added last-segment guard for
nested-class receiver resolution.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
