getMostSpecialized for function template sets is never used in the context of a
call; remove its 'number of explicit arguments' and 'what kind of call'
parameters.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190444 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused variable.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190445 91177308-0d34-0410-b5e6-96231b3b80d8
Fix ICE in consumed analysis when CFG is null.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190447 91177308-0d34-0410-b5e6-96231b3b80d8