Split Vim and Neovim tests into separate builds

.travis.yml

@@ -3,5 +3,8 @@ sudo: required
 services:
     - docker
 language: generic
+env:
+    - OPTIONS=--no-neovim
+    - OPTIONS=--neovim-only
 script: |
-    ./run-tests -v
+    ./run-tests -v $OPTIONS

run-tests

@@ -56,6 +56,11 @@ while [ $# -ne 0 ]; do
         run_linters=0
         shift
     ;;
+    --no-neovim)
+        run_neovim_02_tests=0
+        run_neovim_03_tests=0
+        shift
+    ;;
     --vim-only)
         run_neovim_02_tests=0
         run_neovim_03_tests=0
@@ -95,6 +100,7 @@ while [ $# -ne 0 ]; do
         echo '  --neovim-only     Run tests only for NeoVim 0.2 and 0.3'
         echo '  --neovim-02-only  Run tests only for NeoVim 0.2'
         echo '  --neovim-03-only  Run tests only for NeoVim 0.3'
+        echo '  --no-neovim       Skip NeoVim tests'
         echo '  --vim-only        Run tests only for Vim 8.0 and 8.1'
         echo '  --vim-80-only     Run tests only for Vim 8.0'
         echo '  --vim-81-only     Run tests only for Vim 8.1'