c language: diagnose use of "[*]" on any array dimension
in the parameter of a function definition. Currently,
it crashes in irgen if it is on other than the 1st dimension.
// rdar://13705391


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180732 91177308-0d34-0410-b5e6-96231b3b80d8