Dependent Address Space Support Test Fix

Modifying a non-type template integer arguement that is causing errors 
in some builds as it's too large for 32-bit longs. This hopefully (and 
seems to when testing) should fix all of the build bot errors relating 
to this test. I also modified the name of the function call to be more 
apt.

Differential Revision: https://reviews.llvm.org/D33666

llvm-svn: 314668