[clang.py] add TypeKind.VECTOR

Added a missing enumeration.

Contributed by: Gregory Szorc <gregory.szorc@gmail.com>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149828 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed