3.6.0.pre.3

Release note

Signature updates

• JSON.load_file, .load_file! (#2031)
• Module#class_eval, Module#module_eval (#2029)
• Open3 (#2014)
• RubyVM::InstructionSequence (#2027)
• Fixup RBS type definitions with rbs-on-rubocop (#2023)
• Avoid using instance/class types in modules (#2020)

Language updates

• Optional type param restriction (#2030)
• Prohibit self type as a generics default (#2022)
• Allow self types in generics default type (#2021)

Library changes

• Add TypeParamDefaultReferenceError#type_param (#2032)