Fix show-source and show-doc on __binding__/__binding_impl__

lib/pry/core_extensions.rb

@@ -52,7 +52,7 @@ class Object
     end
 
     unless respond_to?(:__binding_impl__)
-      binding_impl_method = <<-METHOD
+      binding_impl_method = [<<-METHOD, __FILE__, __LINE__ + 1]
         # Get a binding with 'self' set to self, and no locals.
         #
         # The default definee is determined by the context in which the
@@ -73,14 +73,14 @@ class Object
       # it has the nice property that we can memoize this check.
       begin
         # instance_eval sets the default definee to the object's singleton class
-        instance_eval binding_impl_method
+        instance_eval *binding_impl_method
 
       # If we can't define methods on the Object's singleton_class. Then we fall
       # back to setting the default definee to be the Object's class. That seems
       # nicer than having a REPL in which you can't define methods.
       rescue TypeError
         # class_eval sets the default definee to self.class
-        self.class.class_eval binding_impl_method
+        self.class.class_eval *binding_impl_method
       end
     end
 

lib/pry/method.rb

@@ -63,7 +63,7 @@ class Pry
       #
       def from_binding(b)
         meth_name = b.eval('__method__')
-        if [:__script__, nil, :__binding__, :__binding_impl__].include?(meth_name)
+        if [:__script__, nil].include?(meth_name)
           nil
         else
           method = begin

test/test_method.rb

@@ -79,10 +79,6 @@ describe Pry::Method do
       Pry::Method.from_binding(Class.new{ def self.foo; binding; end }.foo).name.should == "foo"
     end
 
-    it 'should NOT find a method from the special pry bindings' do
-      Pry::Method.from_binding(5.__binding__).should == nil
-    end
-
     it 'should NOT find a method from the toplevel binding' do
       Pry::Method.from_binding(TOPLEVEL_BINDING).should == nil
     end