Add the union keyword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97155 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/vim/llvm.vim b/utils/vim/llvm.vim
index 6e4a207..36d78e6 100644
--- a/utils/vim/llvm.vim
+++ b/utils/vim/llvm.vim
@@ -57,6 +57,7 @@
syn keyword llvmKeyword addrspace section alias sideeffect c gc
syn keyword llvmKeyword target datalayout triple
syn keyword llvmKeyword blockaddress
+syn keyword llvmKeyword union
" Obsolete keywords.
syn keyword llvmError uninitialized implementation