Herwin

This addresses most of the open issues left in #1222. Most relevant is the shared spec to get a definition of what all methods on `Random::Formatter` should behave like. Once...

Add specs for lookarounds in regexp in linear time

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This is an attempt at a fix for #1216, but I feel like this is more of an MRI internal property and I'm not sure if this does even belong...

… to StringIO#readpartial This one was missing in #1278, I got it to work with the `encoding: binary` directive. The StringIO code was fine, the spec was just incomplete.

Status of interpreted mode

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There is an interpreted mode in Natalie (with `-i`). This works sometimes, but it often results in weird errors. For example, I was checking the change in #2854 in interpreted...

For now I just want to see what breaks, so we can bump the compatibility version later this year.

This means any rvalue references are now moved into the recursive call, instead of being copied. The following example script: ```c++ TM::String foo() { return "foo"; } TM::String bar() {...

Add deduplication to Errno objects

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This makes Errno spec-compliant

This removes all the specialized implementations of `StringObject::create` with a generic one that just forwards the arguments to the actual private constructors. We can do the same thing with all...