Added highlighting of installed casks to cask search

Library/Homebrew/cask/lib/hbc/cli/search.rb

@@ -39,7 +39,7 @@ module Hbc
         end
         if exact_match
           ohai "Exact match"
-          puts exact_match
+          puts highlight_installed exact_match
         end
 
         return if partial_matches.empty?
@@ -49,7 +49,8 @@ module Hbc
         else
           ohai "Partial matches"
         end
-        puts Formatter.columns(partial_matches)
+        highlighted = partial_matches.map { |match| highlight_installed match }
+        puts Formatter.columns(highlighted)
       end
 
       def self.help

Library/Homebrew/cask/lib/hbc/utils.rb

@@ -36,6 +36,14 @@ def odebug(title, *sput)
   puts sput unless sput.empty?
 end
 
+def highlight_installed(token)
+  cask = Hbc.load(token)
+  if cask.installed?
+    token = pretty_installed token
+  end
+  token
+end
+
 module Hbc
   module Utils
     def self.gain_permissions_remove(path, command: SystemCommand)