Add parent Parrot language

lib/linguist/languages.yml

@@ -643,20 +643,24 @@ PHP:
   - .php5
   - .phpt
 
-Parrot Internal Representation:
+Parrot:
+  type: programming
+  lexer: Text only
+  primary_extension: .parrot # Dummy extension
+
+Parrot Internal Representation:
+  group: Parrot
   type: programming
   lexer: Text only
-  search_term: pir
   aliases:
   - pir
-  group: Parrot
   extensions:
   - .pir
 
 Parrot Assembly:
+  group: Parrot
   type: programming
   lexer: Text only
-  group: Parrot
   aliases:
   - pasm
   extensions:

test/test_language.rb

@@ -150,7 +150,6 @@ class TestLanguage < Test::Unit::TestCase
     assert_equal 'irc',           Language['IRC log'].search_term
     assert_equal 'lhs',           Language['Literate Haskell'].search_term
     assert_equal 'ruby',          Language['Mirah'].search_term
-    assert_equal 'pir',           Language['Parrot Internal Representation'].search_term
     assert_equal 'raw',           Language['Raw token data'].search_term
     assert_equal 'bash',          Language['Shell'].search_term
     assert_equal 'vim',           Language['VimL'].search_term