while true; 1; end

1 while true

tap { break while true }

tap { next while true }

return while true

foo :a, :b while bar?

tap { while def self.foo a = tap do end; end; break; end }

tap { while class Foo a = tap do end; end; break; end }

tap { while class << self; tap do end; end; break; end }

tap { while class << self; a = tap do end; end; break; end }

while def foo = bar do end; end

foo while bar in baz