Check for TinyTDS version accounts for ruby 1.9 #instance_methods reflection being symbols.

Author: metaskills

lib/active_record/connection_adapters/sqlserver_adapter.rb

@@ -24,7 +24,7 @@ def self.sqlserver_connection(config) #:nodoc:
       when :dblib
         raise ArgumentError, 'Missing :dataserver configuration.' unless config.has_key?(:dataserver)
         require_library_or_gem 'tiny_tds'
-        warn("TinyTds v0.4.3 or higher required. Using #{TinyTds::VERSION}") unless TinyTds::Client.instance_methods.include?("active?")
+        warn("TinyTds v0.4.3 or higher required. Using #{TinyTds::VERSION}") unless TinyTds::Client.instance_methods.map(&:to_s).include?("active?")
       when :odbc
         raise ArgumentError, 'Missing :dsn configuration.' unless config.has_key?(:dsn)
         if RUBY_VERSION < '1.9'