clang-format: Use nested block special case for all languages.

Previously this was only used for JavaScript.

Before:
  functionCall({
                 int i;
                 int j;
               },
               aaaa, bbbb, cccc);

After:
  functionCall({
    int i;
    int j;
  }, aaaa, bbbb, cccc);

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@222531 91177308-0d34-0410-b5e6-96231b3b80d8