Hello!

> 2015-05-03  Sandra Loosemore  <sandra@codesourcery.com>
>
>    gcc/
>    * doc/extend.texi (Variable Attributes, Type Attributes):  Move
>    sections up in file, to immediately after the Function Attributes
>    section.

You also need to update relevant @menu entry, otherwise you get
several warning like:

/home/uros/gcc-svn/trunk/gcc/doc/extend.texi:2146: warning: node next
`Function Attributes' in menu `Label Attributes' and in sectioning
`Variable Attributes' differ

Fixed with attached patch.

2015-05-05  Uros Bizjak  <ubizjak@gmail.com>

    * doc/extend.texi (C Extensions): Update menu for moved Variable
    Attributes and Type Attributes sections.

Tested with texinfo 5.2 and committed to mainline SVN.

Uros.