v1.9.0

Added

• Lots of work on the Ripper translation layer to make it more compatible and efficient.
• Alias Prism::Node#breadth_first_search to Prism::Node#find.
• Add Prism::Node#breadth_first_search_all/Prism::Node#find_all for finding all nodes matching a condition.

Changed

• Fixed location of opening tokens when invalid syntax is parsed.
• Fix RBI for parsing options.