Integrate heuristics into lexer selection

src/heuristics.cr

@@ -1,13 +1,12 @@
 require "yaml"
 
-  # Use linguist's heuristics to disambiguate between languages
-  # This is *shamelessly* stolen from https://github.com/github-linguist/linguist
-  # and ported to Crystal. Deepest thanks to the authors of Linguist
-  # for licensing it liberally.
-  # 
-  # Consider this code (c) 2017 GitHub, Inc. even if I wrote it.
-  module Linguist
-
+# Use linguist's heuristics to disambiguate between languages
+# This is *shamelessly* stolen from https://github.com/github-linguist/linguist
+# and ported to Crystal. Deepest thanks to the authors of Linguist
+# for licensing it liberally.
+#
+# Consider this code (c) 2017 GitHub, Inc. even if I wrote it.
+module Linguist
   class Heuristic
     include YAML::Serializable
 
@@ -80,7 +79,3 @@ require "yaml"
     end
   end
 end
-
-h = Linguist::Heuristic.from_yaml(File.read("heuristics/heuristics.yml"))
-fname = "/usr/include/sqlite3.h"
-p! h.run(fname, File.read(fname))