Merge branch '2.3.x' into 2.4.x

* 2.3.x:
  Make sure functions are loaded for each test
  Use rvalue functions correctly
  (Maint) Don't mock with mocha
  (Maint) Fix up the get_module_path parser function
  (Maint) use PuppetlabsSpec::PuppetSeams.parser_scope (2.3.x)
  (Maint) Rename PuppetlabsSpec::Puppet{Seams,Internals}
  (Maint) use PuppetlabsSpec::PuppetSeams.parser_scope
  (Maint) Fix interpreter lines
  Update CHANGELOG, Modulefile for 2.3.3
  fix regression in #11017 properly
  Fix spec tests using the new spec_helper
  Update CHANGELOG for 2.3.2 release
  Make file_line default to ensure => present
  Memoize file_line spec instance variables
  Fix spec tests using the new spec_helper
  Revert "Merge remote-tracking branch 'eshamow/tickets/bug/13595_restrict_initialize_everything_for_tests' into 2.2.x"
  (#13595) initialize_everything_for_tests couples modules Puppet ver