Here's a quick patch to add RubyBinding and make RubyKernel.eval (actually RubyObject.eval) work correctly with it. It's pretty basic, as you'd expect...just replaces the frame stack and class stack in the current ThreadContext with the ones from when binding was called. I couldn't find any specific Binding tests in Ruby, so I'll hunt around more or commit one later.
def x str = "hello" end x_binding = x eval "puts str", x_binding => hello - Charlie
binding.patch
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