clang-format: [JS] Prevent confusing TypeScript parameters wraps.

Before:
  aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa:
                     aaaaaaaaaaaaaaaaaa): aaaaaaaaaaaaaaaaaaaaaa {}

After:
  aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaa,
                     aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaa):
      aaaaaaaaaaaaaaaaaaaaaa {}

llvm-svn: 241444