Include and prepend statements are rarely used in block in normal code and when
used in normal code they tend to be in blocks that are passed to methods like
`module_eval` which is a builtin method that evaluates a block in the context
of some other module (typically created with Module.new). We currently don't attempt
to track such "dynamically" constructed modules, and ignoring such modules
and the `module_eval` calls on them seems fine for now.
Another, much more frequent use of include/prepend statements in blocks is in Rspec.describe and
Rspec.context method calls in tests. Rspec also evaluates those blocks in the context of some
special Rspec class. Precisely tracking such calls during the initial construction of the module/class
hierarchy would be really hard and there would be little benefit because the interesting modules and classes of
an application are not defined in test files.