replace Fixnum with Integer in rdoc [ci skip]

* array.c, class.c: Fixed documentation where Fixnum was referred
  directly to use Integer, as Fixnum and Bignum are now unified
  into Integer and direct usage is deprecated.  [Fix GH-1459]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56382 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Sun Oct  9 23:05:53 2016  Prathamesh Sonpatki  <csonpatki@gmail.com>
+
+	* array.c, class.c: Fixed documentation where Fixnum was referred
+	  directly to use Integer, as Fixnum and Bignum are now unified
+	  into Integer and direct usage is deprecated.  [Fix GH-1459]
+
 Sun Oct  9 11:37:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_core.h (VM_ASSERT): stringify expr here before expansion in

array.c

@@ -5716,7 +5716,7 @@ rb_ary_dig(int argc, VALUE *argv, VALUE self)
  *
  *
  * Array#sum method may not respect method redefinition of "+" methods
- * such as Fixnum#+.
+ * such as Integer#+.
  *
  */
 

class.c

@@ -1645,7 +1645,7 @@ rb_singleton_class_get(VALUE obj)
  * Returns the singleton class of \a obj. Creates it if necessary.
  *
  * \param obj an arbitrary object.
- * \throw TypeError if \a obj is a Fixnum or a Symbol.
+ * \throw TypeError if \a obj is a Integer or a Symbol.
  * \return the singleton class.
  *
  * \post \a obj has its own singleton class.