This directory contains the necessary syntax files for vim. Vim support is still new to Rune and there are likely still bugs abound. Please file any complaints to /dev/nu^Waidenhall@ and/or g/rune-lang. There are 2 methods for setting these files up for your environment.
This will ensure you get the most up to date versions of both files every time you open a Rune file.
mkdir ~/.vim/syntax && ln -s /google/src/head/depot/google3/third_party/rune/editors/vim/syntax/rune.vim ~/.vim/syntax/rune.vim
mkdir ~/.vim/ftdetect && ln -s /google/src/head/depot/google3/third_party/rune/editors/vim/ftdetect/rune.vim ~/.vim/ftdetect/rune.vim
This method won't provide you with updates to these syntax files.
mkdir ~/.vim/syntax && cp /google/src/head/depot/google3/third_party/rune/editors/vim/syntax/rune.vim ~/.vim/syntax/rune.vim
mkdir ~/.vim/ftdetect && cp /google/src/head/depot/google3/third_party/rune/editors/vim/ftdetect/rune.vim ~/.vim/ftdetect/rune.vim