[NFC] Silence compiler warning [-Wmissing-braces].

clang/lib/CodeGen/CGNonTrivialStruct.cpp:330:7: warning: suggest braces around initialization of subobject [-Wmissing-braces]
  Address(CGF->Builder.CreateLoad(CGF->GetAddrOfLocalVar(Args[Ints])),
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  {