In Ruby 3.2 or later, a nested constant access like `Foo::Bar::Baz` is
compiled to one instruction by the optimization https://github.com/ruby/ruby/pull/6187
We try to spot which sub-node caues a NameError in question based on the
constant name. We will give up if the same constant name is accessed in
a nested access (`Foo::Foo`).
Fixes https://github.com/ruby/error_highlight/pull/310a4db7da0a
Fixes a bug where `spot` was using the wrong local variable.
We want to use error highlight with code that has been eval'd,
specifically ERB templates. We can recover the compiled source code of
the ERB template but we need an API to pass the node into error
highlight's `spot`.
Required Ruby PR: https://github.com/ruby/ruby/pull/65930b1b650a59
Co-authored-by: Aaron Patterson <tenderlove@ruby-lang.org>
