ART: Rename CallInlining to SpecialMethodInliner

The CallInlining pass is used to inline just a set of pre-categorized methods.
This set of methods includes empty, instance getters, instance setters, argument
return, and constant return. Since it inlines only "special methods", it makes
sense to name it to reflect that.

Change-Id: Iea2c1820080b0c212c99e977f6b5d34ee0774868
Signed-off-by: Razvan A Lupusoru <razvan.a.lupusoru@intel.com>