v0.30.0

Added

• More correctly raise mixed encoding errors.
• Implement ambiguous binary operator warning.
• Fix up regexp escapes with control and meta characters.
• Fix up support for the it implicit local variable.
• Heredoc identifiers now properly disallow CLRF.
• Errors added for void value expressions in begin clauses.
• Many updates to more closely match the parser gem in parser translation.
• Many errors added for invalid regular expressions.

Changed

• Handle parser translation missing the parser gem.
• Handle ruby_parser translation missing the ruby_parser gem.
• Various error messages have been updated to more closely match CRuby.
• RationalNode now has a numerator and denominator field instead of a numeric field. For the Ruby API we provide a RationalNode#numeric method for backwards-compatibility.