clang-format: Fix formatting of function type parameters.

Before:
  void f() { typedef void (*f)(int * a); }
After:
  void f() { typedef void (*f)(int *a); }

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197369 91177308-0d34-0410-b5e6-96231b3b80d8