Syntax error in previously valid puppet code due to removal of application orchestration keywords

Puppet Version:

7.4.1

class foo (

  $site,

) {

  notice $site

}

class { foo:

  site => 'bar', # syntax error on this line in puppet 7

}

The above code works fine in Puppet 4, 5 and 6 despite `site` being on the list of reserved words here. https://puppet.com/docs/puppet/7.4/lang_reserved.html#lang_reserved_words

Actual Behavior:

Error: Could not parse for environment production: Syntax error at 'site' (file: /home/halexfis/test.pp, line: 8, column: 3) on node test

https://puppet.com/docs/puppet/7.4/lang_reserved.html#lang_reserved_words doesn't explicitly say you can't use these words as parameter names, and other examples from that list continue to work fine. (eg. 'node').

It looks like this regression was caused by https://tickets.puppetlabs.com/browse/PUP-10446