instead of BinPackParameters. Braced lists are used as constructor
calls in many places and so the bin-packing should follow what is done
for other calls and not what is done for function declarations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@238184 91177308-0d34-0410-b5e6-96231b3b80d8