vim: add `immarg` keyword

The `immarg` attribute was added in r355981.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@370443 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/vim/syntax/llvm.vim b/utils/vim/syntax/llvm.vim
index 1a060ab651408517c6e0fd1d97219b1fbae6af17..14987cb2348f33e01e98982a76fa0584e504f295 100644 (file)
--- a/utils/vim/syntax/llvm.vim
+++ b/utils/vim/syntax/llvm.vim
@@ -89,6 +89,7 @@ syn keyword llvmKeyword
       \ hhvmcc
       \ hhvm_ccc
       \ hidden
+      \ immarg
       \ initialexec
       \ inlinehint
       \ inreg