fix tests

lib/sof/all.rb

@@ -1,39 +0,0 @@
-require_relative "util"
-require_relative "node"
-require_relative "members"
-require_relative "volotile"
-require_relative "writer"
-require_relative "array"
-require_relative "hash"
-require_relative "occurence"
-
-Symbol.class_eval do
-  def to_sof()
-    ":#{to_s}"
-  end
-end
-TrueClass.class_eval do
-  def to_sof()
-    "true"
-  end
-end
-NilClass.class_eval do
-  def to_sof()
-    "nil"
-  end
-end
-FalseClass.class_eval do
-  def to_sof()
-    "false"
-  end
-end
-String.class_eval do
-  def to_sof()
-    "'" + self + "'"
-  end
-end
-Fixnum.class_eval do
-  def to_sof()
-    to_s
-  end
-end