[FSRTL]

[FSRTL]
Handle cases where multiple ranges overlap a new lock, including either exclusive or shared
ranges.  We expand a shared range when an overlap occurs and add another shared range to
the shared ranges list.  Also make sure to complete an IRP along every non-pending case.
Reduces failures in kernel32_winetest except an expected successful unlock of ~0,1, which
appears to contravene the documentation.

svn path=/trunk/; revision=56098