Add coq comments

lib/linguist/tokenizer.rb

@@ -72,6 +72,12 @@ module Linguist
           s.skip_until(/-->/)
           tokens << "-->"
 
+        # Coq multiline comments
+        elsif token = s.scan(/\(\*/)
+          tokens << "(*"
+          s.skip_until(/\*\)/)
+          tokens << "*)"
+
         # Skip single or double quoted strings
         elsif s.scan(/"/)
           s.skip_until(/[^\\]"/)

test/test_tokenizer.rb

@@ -36,6 +36,7 @@ class TestTokenizer < Test::Unit::TestCase
     assert_equal %w(foo /* */), tokenize("foo /* \nComment\n */")
     assert_equal %w(foo <!-- -->), tokenize("foo <!-- Comment -->")
     assert_equal %w(foo {- -}), tokenize("foo {- Comment -}")
+    assert_equal %w(foo \(* *\)), tokenize("foo (* Comment *)")
     assert_equal %w(% %), tokenize("2 % 10\n% Comment")
   end