In C++, a variadic function does not need an ellipsis prior to the comma. Parse it in both C and C++, but diagnose it as an error in C with a fix-it hint to add the comma.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82576 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed