When making an array or stuct/union/class elements, make sure the type is...

When making an array or stuct/union/class elements, make sure the type is complete. If the type isn't complete, complete the type so that clang won't assert and kill your program. Since the DWARF assists in doing layout, it won't show the array or struct/unions/class elements correctly, but it will stop you from crashing if you have a struct/union/class that contains one of these arrays.

<rdar://problem/25057391>

llvm-svn: 266922