Syntax highlight of Ruby is broken on percent notations

[takaram]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.62.3, 1.63.0-insider
• OS Version: Windows_NT x64 10.0.19042

Steps to Reproduce:

1. Create .rb file
2. Input code like below

puts %(() parentheses)
puts %<{} braces>
puts %Q{[] brackets}
puts %r[[^a-z]]
puts %(
  def foo()
    puts 123
  rescue
    nil
  end
)
puts %x(echo '() parentheses')

Expected:
The literal is recognized as strings (or regexp) until the closing bracket.
Specification of Ruby percent notations: http://www.chrisrolle.com/en/blog/ruby-percentage-notations

Actual:

[alexr00]

Moved to the repository that we get our ruby syntax highlighting grammar from: textmate/ruby.tmbundle#140