Splitting up more code dependent on ParseTree

Manifest.txt

@@ -50,7 +50,6 @@ spec/reek/name_spec.rb
 spec/reek/object_refs_spec.rb
 spec/reek/options_spec.rb
 spec/reek/report_spec.rb
-spec/reek/sexp_formatter_spec.rb
 spec/reek/singleton_method_context_spec.rb
 spec/reek/smells/control_couple_spec.rb
 spec/reek/smells/duplication_spec.rb

lib/reek/code_parser.rb

@@ -22,10 +22,6 @@ def self.unify(sexp)   # :nodoc:
       return unifier.process(sexp[0])
     end
 
-    def self.parse_tree_for(code)   # :nodoc:
-      unify(ParseTree.new.parse_tree_for_string(code))
-    end
-
     # Creates a new Ruby code checker. Any smells discovered by
     # +check_source+ or +check_object+ will be stored in +report+.
     def initialize(report, smells, ctx = StopContext.new)
@@ -38,21 +34,6 @@ def initialize(report, smells, ctx = StopContext.new)
       @require_empty = @warn_on_default = false
     end
 
-    # Analyses the given Ruby source +code+ looking for smells.
-    # Any smells found are saved in the +Report+ object that
-    # was passed to this object's constructor.
-    def check_source(code)
-      check_parse_tree(CodeParser.parse_tree_for(code))
-    end
-
-    # Analyses the given Ruby object +obj+ looking for smells.
-    # Any smells found are saved in the +Report+ object that
-    # was passed to this object's constructor.
-    def check_object(obj)
-      sexp = CodeParser.unify(ParseTree.new.parse_tree(obj))
-      check_parse_tree(sexp)
-    end
-
     def process_default(exp)
       exp[0..-1].each { |sub| process(sub) if Array === sub }
       s(exp)
@@ -211,9 +192,5 @@ def pop(exp)
       @element = @element.outer
       s(exp)
     end
-
-    def check_parse_tree(sexp)  # :nodoc:
-      process(sexp)
-    end
   end
 end

lib/reek/object_source.rb

@@ -25,7 +25,8 @@ def self.from_object(obj)
 
     class ObjectSource < Source   # :nodoc:
       def check(parser) # :nodoc:
-        parser.check_object(@source)
+        sexp = CodeParser.unify(ParseTree.new.parse_tree(@source))
+        parser.process(sexp)
       end
     end
   end

lib/reek/source.rb

@@ -73,7 +73,8 @@ def initialize(code, desc, dir = nil)     # :nodoc:
     end
 
     def check(parser) # :nodoc:
-      parser.check_source(@source)
+      sexp = CodeParser.unify(ParseTree.new.parse_tree_for_string(@source))
+      parser.process(sexp)
     end
 
     #